| 
                                            
                                            
                                                Ireland IIP: Liabilities (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 9,386,594.000
            
                                        Dec 2024
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2024
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -430,467.000
            
                                        Dec 2024
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2024
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 8,956,127.000
            
                                        Dec 2024
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2024
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Direct Investment Abroad (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 16,110.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Direct Investment Abroad: Equity Capital and Reinvested Earnin... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 24,343.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Direct Investment Abroad: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -8,232.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -550,303.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Equity (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -1,631,337.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Equity: Monetary Authority (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Equity: General Government (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 4,116.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Equity: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -451,864.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Equity: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -1,183,589.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 1,081,035.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: Bonds and Notes (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 648,979.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: Bonds and Notes: Moneta... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 20,902.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: Bonds and Notes: Genera... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -80,906.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: Bonds and Notes: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 45,343.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: Bonds and Notes: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 663,640.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: Money Market Instrument... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 432,057.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: MM: Monetary Authority (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 1,284.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: MM: General Government (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -2,397.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: MM: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 326,613.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Portfolio Investment: Debt Securities: MM: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 106,556.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 69,988.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Loans, Currency and Deposits (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 225,627.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Loans, Currency and Deposits: Monetary Autho... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -12,796.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Loans, Currency and Deposits: General Govern... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -45,451.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Loans, Currency and Deposits: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 154,185.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Loans, Currency and Deposits: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 129,689.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Trade Credits (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 4,671.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Trade Credits: General Government (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Trade Credits: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 4,671.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Other Assets (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -160,307.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Other Assets: Monetary Authority (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 872.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Other Assets: General Government (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 1,559.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Other Assets: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -7,844.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Other Investment: Other Assets: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 -154,894.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Reserve Assets: Monetary Gold (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 198.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Reserve Assets: Special Drawing Rights (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 776.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Reserve Assets: Reserve Position in the IMF (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 959.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Reserve Assets: Foreign Exchange (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 597.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Net: Reserve Assets: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 1,140.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Direct Investment Abroad: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 60,530.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Equity (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 1,072,460.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Equity: Monetary Authority (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Equity: General Government (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 4,116.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Equity: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 2,129.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Equity: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 1,066,215.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: Bonds and Notes: Mon... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 20,902.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: Bonds and Notes: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 73,363.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: Bonds and Notes: Oth... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 986,770.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: Money Market Instrum... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 449,584.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: MM: Monetary Authori... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 1,284.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: MM: General Governme... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: MM: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 341,153.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Portfolio Investment: Debt Securities: MM: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 107,147.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Loans, Currency and Deposits (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 815,251.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Loans, Currency and Deposits: Monetary Au... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 4,850.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Loans, Currency and Deposits: General Gov... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 2,589.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Loans, Currency and Deposits: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 289,362.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Loans, Currency and Deposits: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 518,450.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Trade Credits: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 50,223.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Other Assets: Monetary Authority (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 872.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Other Assets: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 27,579.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Assets: Other Investment: Other Assets: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 221,905.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                IIP: Liabilities: Direct Investment in Ireland (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 733,892.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                IIP: Liabilities: Direct Investment in Ireland: Equity Capital and Reinvested Ea... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 665,130.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                IIP: Liabilities: Direct Investment in Ireland: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 68,762.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Equity (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 2,703,797.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Equity: Monetary Authority (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Equity: General Government (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Equity: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 453,993.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Equity: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 2,249,804.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: Bonds and Notes... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: Bonds and Notes... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 28,020.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: Bonds and Notes... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 323,130.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: Money Market In... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 17,527.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: MM: Monetary Au... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: MM: General Gov... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 2,397.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: MM: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 14,540.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Portfolio Investment: Debt Securities: MM: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 591.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Loans, Currency and Deposits (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 589,624.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Loans, Currency and Deposits: Moneta... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 17,646.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Loans, Currency and Deposits: Genera... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 48,040.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Loans, Currency and Deposits: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 135,177.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Loans, Currency and Deposits: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 388,761.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Trade Credits: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 45,552.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Other Liabilities: Monetary Authorit... (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 0.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Other Liabilities: MFI (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 35,423.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     | 
                                
                            
                        
                            
                                
                                    
                                        
                                        
                                        | 
                                            
                                            
                                                Ireland IIP: Liabilities: Other Investment: Other Liabilities: Others (EUR mn)
                                            
                                         | 
                                    
                                    
                                        
                                        
                
                 376,799.00
            
                                        Dec 2017
                                     | 
                                    
                                    
                                    
                                        quarterly
                                     | 
                                    
                                        Mar 2012 - Dec 2017
                                     |