Restructuring and Other Items (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Period Start	$ 20	$ 69	$ 50
Restructuring Reserve, Period Expense	100	15	113
Restructuring Reserve, Accrual Adjustment	0	0	0
Restructuring Reserve, Settled with Cash	(74)	(64)	(94)
Restructuring Reserve, Period End	46	20	69
Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Period Start	85	74	54
Restructuring Reserve, Period Expense	0	20	13
Restructuring Reserve, Accrual Adjustment	0	14	19
Restructuring Reserve, Settled with Cash	(21)	(23)	(12)
Restructuring Reserve, Period End	$ 64	$ 85	$ 74