Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Debt (ECA-Guaranteed Financings) (Details)

v2.4.0.6
Debt (ECA-Guaranteed Financings) (Details) (USD $)
1 Months Ended 1 Months Ended 12 Months Ended
Mar. 23, 2012
Dec. 31, 2011
Jan. 31, 2006
ECA-Guaranteed Financings-A320 Aircraft [Member]
Apr. 30, 2003
ECA-Guaranteed Financings-A320 Aircraft [Member]
Dec. 31, 2008
ECA-Guaranteed Financings 2008-Airbus A330 And A320 Family Aircraft [Member]
Dec. 31, 2011
ECA-Guaranteed Financings 2008-Airbus A330 And A320 Family Aircraft [Member]
Dec. 31, 2011
ECA-Guaranteed Financings 2009-A320 Aircraft [Member]
Dec. 31, 2009
ECA-Guaranteed Financings 2009-A320 Aircraft [Member]
Mar. 31, 2009
ECA-Guaranteed Financings 2009-A320 Aircraft [Member]
Dec. 31, 2011
Minimum [Member]
ECA-Guaranteed Financings-A320 Aircraft [Member]
Dec. 31, 2011
Maximum [Member]
ECA-Guaranteed Financings-A320 Aircraft [Member]
Dec. 31, 2011
Maximum [Member]
ECA-Guaranteed Financings 2008-Airbus A330 And A320 Family Aircraft [Member]
Dec. 31, 2011
AerVenture [Member]
ECA-Guaranteed Financings 2009-A320 Aircraft [Member]
Debt Instrument [Line Items]                          
Credit facility, amount       $ 840,000,000 $ 1,400,000,000       $ 846,000,000        
Maximum size of the facility increased     1,200,000,000   1,600,000,000                
Three-month LIBOR ranges                   0.12% 0.90% 1.47%  
Debt, weighted average interest rate           3.02%              
Debt, fixed interest rate             4.23%            
Debt, floating interest rate             1.11%            
Obligation to repay principal loans over term           ten or 12-year term ten or 12-year term            
Ownership percentage                         100.00%
Book value of aircraft pledged to the ECA             $ 2,000,000,000            
Number of additional aircraft     9   3                
Number of aircraft delivered 4           5            
Number of aircraft   251   20 15   44 20