Finance Assets, net (Narrative) (Details) (USD $)	3 Months Ended										12 Months Ended				3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended									3 Months Ended	12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2011 Reduction To Cumulative Lease Earnings [Member]	Dec. 31, 2012 Reduction To Cumulative Lease Earnings [Member]	Dec. 31, 2011 Reduction To Cumulative Lease Earnings [Member]	Jun. 30, 2011 Interest On Tax Underpayments [Member]	Dec. 31, 2012 Interest On Tax Underpayments [Member]	Dec. 31, 2011 Interest On Tax Underpayments [Member]	Dec. 31, 2013 Rail And Surface Transport [Member]	Dec. 31, 2013 Aircraft [Member]	Dec. 31, 2013 Electric Power [Member]	Dec. 31, 2013 Real Estate [Member]	Dec. 31, 2013 Manufacturing [Member]	Dec. 31, 2013 Finance Leases Financing Receivable [Member]	Dec. 31, 2012 Finance Leases Financing Receivable [Member]	Dec. 31, 2011 American Airlines [Member]	Dec. 31, 2012 American Airlines [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Permanent Charge For Interest On Tax Underpayments										50.00%
Finance assets, net	$ 1,997,000,000				$ 2,581,000,000						$ 1,997,000,000	$ 2,581,000,000
Investment in finance lease	2,049,000,000				2,680,000,000						2,049,000,000	2,680,000,000														2,049,000,000	2,680,000,000
Earnings (benefit) charge recorded as a result of Closing Agreement						(68,000,000)				627,000,000		(68,000,000)	627,000,000		315,000,000	5,000,000	315,000,000		(73,000,000)	312,000,000
Permanent charge (credit) for interest on tax underpayment												(75,000,000)	137,000,000			(2,000,000)	(175,000,000)	312,000,000	(73,000,000)	312,000,000
Reduction in cumulative lease earnings excluding penalties and interest										50.00%
Third-party nonrecourse debt	2,800,000,000				3,900,000,000						2,800,000,000	3,900,000,000
Lease with contingent rentals											0	0
Investment in finance leases, percentage																					23.00%	39.00%	19.00%	15.00%	4.00%
Investment outside United States, percentage	0.00%										0.00%
PMCC leveraged lease charges											209,000,000	149,000,000	(314,000,000)
Reduction to cumulative earnings					0	0	7,000,000	0				7,000,000	490,000,000			7,000,000	490,000,000
Direct finance lease revenues											1,000,000	1,000,000	1,000,000
(Decrease) increase to allowance	0	0	(27,000,000)	(20,000,000)	0	(33,000,000)	(11,000,000)	0	(35,000,000)		(47,000,000)	(10,000,000)	25,000,000															60,000,000
Write off of investments in finance lease balance											0	(118,000,000)	0																(118,000,000)
Allowance for credit losses	52,000,000				99,000,000						52,000,000	99,000,000	227,000,000	202,000,000
Income tax (benefit) expense on leveraged lease revenues											$ 80,000,000	$ 54,000,000	$ (112,000,000)