Lease Rental Revenues and Flight Equipment Held for Lease (Details 1)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Geographic concentration of lease rental revenue earnings
Percentage of geographic concentration of lease rental revenue earnings	100.00%	100.00%	100.00%
Europe
Geographic concentration of lease rental revenue earnings
Percentage of geographic concentration of lease rental revenue earnings	39.00%	45.00%	45.00%
Asia and Pacific
Geographic concentration of lease rental revenue earnings
Percentage of geographic concentration of lease rental revenue earnings	32.00%	24.00%	21.00%
North America
Geographic concentration of lease rental revenue earnings
Percentage of geographic concentration of lease rental revenue earnings	11.00%	13.00%	15.00%
Middle East and Africa
Geographic concentration of lease rental revenue earnings
Percentage of geographic concentration of lease rental revenue earnings	11.00%	11.00%	10.00%
Latin America
Geographic concentration of lease rental revenue earnings
Percentage of geographic concentration of lease rental revenue earnings	7.00%	7.00%	9.00%