Discontinued Operations (Income Statement Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Net Sales	$ 0	$ 522	$ 309	$ 1,607
Income (loss) from operations	0	91	63	(1,017)
Income tax expense	0	(30)	(32)	(38)
Income from operations, net of income taxes	0	61	31	(1,055)
(Gain) loss on disposal	10	(26)	(30)	(62)
Income tax benefit (expense)	7	135	20	294
Income from continuing operations	$ 17	$ 170	$ 21	$ (823)