Restructuring Related Activities 2011 (Details) (USD $) In Millions	9 Months Ended	32 Months Ended	3 Months Ended												2 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2011 2011 Restructuring Plan [Member] Minimum [Member]	Sep. 30, 2011 2011 Restructuring Plan [Member] Minimum [Member] Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2011 2011 Restructuring Plan [Member] Minimum [Member] Restructuring Plan [Member] Other [Member]		Sep. 30, 2011 2011 Restructuring Plan [Member] Minimum [Member] Restructuring Related To Plan [Member] Other [Member]		Sep. 30, 2011 2011 Restructuring Plan [Member] Maximum [Member]	Sep. 30, 2011 2011 Restructuring Plan [Member] Maximum [Member] Restructuring Plan [Member] Termination Benefits [Member]	Sep. 30, 2011 2011 Restructuring Plan [Member] Maximum [Member] Restructuring Plan [Member] Other [Member]		Sep. 30, 2011 2011 Restructuring Plan [Member] Maximum [Member] Restructuring Related To Plan [Member] Other [Member]		Sep. 30, 2011 2011 Restructuring Plan [Member]
Estimated costs of restructuring program by major type of cost
Expected completion of activities under 2011 Restructuring plan, months	24 months
Expected total costs associated with the plan			$ 155	$ 125	$ 20	[1]	$ 10	[2]	$ 210	$ 150	$ 40	[1]	$ 20	[2]
Restructuring and Related Cost, Cost Incurred to Date		296													15
Restructuring plan estimated future cash outflow			$ 150						$ 200

[1] Includes primarily consulting fees and costs associated with contractual cancellations.

[2] Comprised of other costs directly related to the 2011 Restructuring plan, including program management, accelerated depreciation, retention and infrastructure-related costs.