Restructuring Related Activities 2010 (Details) (USD $) In Millions	3 Months Ended		9 Months Ended		32 Months Ended	3 Months Ended												9 Months Ended		20 Months Ended	3 Months Ended		9 Months Ended		32 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		20 Months Ended	3 Months Ended		9 Months Ended		32 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		20 Months Ended	3 Months Ended		9 Months Ended		32 Months Ended	3 Months Ended		9 Months Ended		20 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2011 2010 Restructuring Plan [Member] Minimum [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Minimum [Member] Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Minimum [Member] Restructuring Plan [Member] Fixed asset write-offs [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Minimum [Member] Restructuring Plan [Member] Other [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Minimum [Member] Restructuring Related To Plan [Member] Other [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Maximum [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Maximum [Member] Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Maximum [Member] Restructuring Plan [Member] Fixed asset write-offs [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Maximum [Member] Restructuring Plan [Member] Other [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Maximum [Member] Restructuring Related To Plan [Member] Other [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2011 Termination Benefits [Member]	Sep. 30, 2010 Termination Benefits [Member]	Sep. 30, 2011 Termination Benefits [Member]	Sep. 30, 2010 Termination Benefits [Member]	Sep. 30, 2011 Termination Benefits [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Accelerated depreciation [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Accelerated depreciation [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Accelerated depreciation [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Accelerated depreciation [Member]	Sep. 30, 2011 Accelerated depreciation [Member]	Sep. 30, 2010 Accelerated depreciation [Member]	Sep. 30, 2011 Accelerated depreciation [Member]	Sep. 30, 2010 Accelerated depreciation [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Transfer costs [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Transfer costs [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Transfer costs [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Transfer costs [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Transfer costs [Member]	Sep. 30, 2011 Transfer costs [Member]	Sep. 30, 2010 Transfer costs [Member]	Sep. 30, 2011 Transfer costs [Member]	Sep. 30, 2010 Transfer costs [Member]	Sep. 30, 2011 Transfer costs [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Fixed asset write-offs [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Fixed asset write-offs [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Fixed asset write-offs [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Fixed asset write-offs [Member]	Sep. 30, 2011 Fixed asset write-offs [Member]	Sep. 30, 2010 Fixed asset write-offs [Member]	Sep. 30, 2011 Fixed asset write-offs [Member]	Sep. 30, 2010 Fixed asset write-offs [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Other [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Other [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Other [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member] Other [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member] Other [Member]	Sep. 30, 2011 Other [Member]	Sep. 30, 2010 Other [Member]	Sep. 30, 2011 Other [Member]	Sep. 30, 2010 Other [Member]	Sep. 30, 2011 Other [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member]	Sep. 30, 2010 2010 Restructuring Plan [Member]	Sep. 30, 2011 2010 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Cost Incurred to Date					$ 296																																																													$ 166
Impact of restructuring costs on the accompanying financial statements
Restructuring plan estimated future cash outflow						150					160
Cash payments associated with restructuring initiatives	24		92		201											9		34		80	10		36		82														5		20		60									5		32		55	9		36		59	14		66		135
Restructuring and Related Cost, Incurred Cost	29	18	109	139												1	2	32	61		12	2	49	66				1		2	2	8	6						5	10	20	32			1		8		1		8	4	3	26	23		10	3	32	27		5	6	59	92
Expected total costs associated with the plan						$ 165	$ 95	$ 10	$ 50	$ 10	$ 185	$ 100	$ 15	$ 55	$ 15