Restructuring Related Activities 2007 (Details) (USD $) In Millions	3 Months Ended	9 Months Ended	32 Months Ended	3 Months Ended	9 Months Ended	47 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2011 2007 Restructuring Plan [Member]	Sep. 30, 2011 2007 Restructuring Plan [Member]	Sep. 30, 2011 2007 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Cost Incurred to Date			$ 296			$ 427
Restructuring plan total cash outflows						380
Cash payments associated with restructuring initiatives	$ 24	$ 92	$ 201	$ 1	$ 3	$ 373