| 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        2018-03
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        2017-06 - 2018-03
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Other Countries Not Elsewhere Classified: Cuba (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2007 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Venezu... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.005
            
                                        Dec 2012
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2006 - Dec 2012
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Urugua... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Jun 2014 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Trinid... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.008
            
                                        Dec 2014
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Dec 2014
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: St. Vi... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2010
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2002 - Dec 2010
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Peru (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.024
            
                                        Jun 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Dec 2000 - Jun 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Paragu... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.050
            
                                        Mar 2014
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2010 - Mar 2014
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Nicara... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2012
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Dec 2012
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Nether... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2006 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Mexico (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2007 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Guyana (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Dec 2012
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Dec 2012
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Greenl... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2016 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: El Sal... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.009
            
                                        Jun 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2009 - Jun 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Domini... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.007
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Curaca... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2012 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Colomb... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Chile (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2016
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Jun 2000 - Dec 2016
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Brazil (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.012
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2001 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Bolivi... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Jun 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Jun 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Barbad... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Dec 2001 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Aruba (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Mar 2013
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2013 - Mar 2013
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Argent... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2014
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2006 - Dec 2014
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere: Antigu... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2013
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2013 - Dec 2013
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Western Hemisphere (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.004
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Zambia (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.007
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Togo (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.017
            
                                        Dec 2010
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Dec 2010 - Dec 2010
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Tanzan... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2015
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Dec 2015
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Swazil... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Dec 2011
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Dec 2011
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: South ... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2006 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Sierra... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.003
            
                                        Dec 2016
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2016 - Dec 2016
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Seyche... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.002
            
                                        Dec 2011
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2009 - Dec 2011
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Senega... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.088
            
                                        Mar 2013
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2004 - Mar 2013
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Rwanda (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.016
            
                                        Jun 2016
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2004 - Jun 2016
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Nigeri... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.033
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Niger (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2007 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Namibi... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2002 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Mozamb... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2012 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Maurit... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.002
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2001 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Mali (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Dec 2012
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Dec 2012
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Malawi (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.011
            
                                        Dec 2014
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Dec 2014
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Kenya (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.001
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2008 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Ghana (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Dec 2016
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2002 - Dec 2016
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Ethiop... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2012 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Cote D... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.041
            
                                        Mar 2011
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Jun 2009 - Mar 2011
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Cabo V... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.004
            
                                        Dec 2015
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2004 - Dec 2015
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Camero... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2016
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2016 - Dec 2016
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Burund... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2017 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Burkin... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2010
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2006 - Dec 2010
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa: Angola (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.074
            
                                        Dec 2014
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Dec 2014
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Sub-Saharan Africa (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.040
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.002
            
                                        Dec 2013
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2001 - Dec 2013
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.005
            
                                        Dec 2010
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2008 - Dec 2010
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.847
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.003
            
                                        Dec 2013
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Jun 2001 - Dec 2013
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2010 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.286
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -1.088
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2007 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Sep 2016 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.003
            
                                        Mar 2014
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2012 - Mar 2014
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.016
            
                                        Dec 2015
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2010 - Dec 2015
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.024
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2007 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.005
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2004 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.021
            
                                        Mar 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2009 - Mar 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Jun 2016
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Jun 2016
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East, North Africa,... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -2.250
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Middle East (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -2.249
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2001 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Africa (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.040
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS: Uzbekistan (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.001
            
                                        Dec 2010
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2010 - Dec 2010
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS: Ukraine (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.074
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2008 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS: Russia (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.551
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS: Moldova (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.002
            
                                        Dec 2015
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2006 - Dec 2015
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS: Kazakhstan (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2015
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Dec 2015
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS: Georgia (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.021
            
                                        Mar 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS: Belarus (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Dec 2015
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2008 - Dec 2015
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: CIS (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.625
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.016
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Dec 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.042
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2007 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2008 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.335
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.001
            
                                        Mar 2015
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2015 - Mar 2015
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2011 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2001 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.003
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Jun 2001 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.003
            
                                        Jun 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Sep 2000 - Jun 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.002
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2004 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe: Emerging and Devel... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.360
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Europe (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.265
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.166
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.501
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2006 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -5.082
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.029
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2000 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.477
            
                                        Dec 2011
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2009 - Dec 2011
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2008 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -4.762
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2010 - Mar 2018
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.000
            
                                        Dec 2016
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2014 - Dec 2016
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                BT: Trade Balance: Emerging and Developing Economies: Emerging and Developing As... (美元 百万)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -0.004
            
                                        Mar 2018
                                     | 
                                    
                                    
                                    
                                        季度
                                     | 
                                    
                                        Mar 2005 - Mar 2018
                                     |