Assets and Liabilities of Businesses Held For Sale and Discontinued Operations (Discontinued Operations) (Details) (USD $) In Millions, unless otherwise specified	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	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operations
Total revenues									$ 186	$ 190	$ 1,074
Earnings (loss) from discontinued operations before income taxes									(484)	(585)	(91)
Benefit (provision) for income taxes									211	198	99
Income (Loss) from Discontinued Operations, Net of Taxes									(273)	(387)	8
Disposal
Gain (loss) on disposal before income taxes									(2,027)	(792)	(329)
Benefit (provision) for income taxes									246	49	351
Gain (loss) on disposal, net of taxes									(1,781)	(743)	22
Earnings (loss) from discontinued operations, net of taxes	(1,720)	(91)	(123)	(120)	(302)	(100)	(543)	(185)	(2,054)	(1,130)	30
Assets
Cash and cash equivalents	232				191				232	191
Financing Receivables - net	711				793				711	793
Property, plant and equipment - net	6				706				6	706
Other	1,381				1,616				1,381	1,616
Assets of discontinued operations	2,330				3,306				2,330	3,306
Liabilities
Deferred income taxes	250				374				250	374
Other	3,540				2,289				3,540	2,289
Liabilities of discontinued operations	$ 3,790				$ 2,663				$ 3,790	$ 2,663