Company Restructuring (Details 2) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011
Restructuring Reserve
Balance at the beginning of the period	$ 16
Expense incurred	19
Adjustments to liability	(9)
Payments applied against liability	(11)
Balance at the end of the period	15
Employee costs
Restructuring Reserve
Balance at the beginning of the period	13
Expense incurred	14
Adjustments to liability	(9)
Payments applied against liability	(9)
Balance at the end of the period	9
Cumulative amount incurred to date for active programs	103
Exit costs
Restructuring Reserve
Balance at the beginning of the period	3
Expense incurred	5
Payments applied against liability	(2)
Balance at the end of the period	6
Cumulative amount incurred to date for active programs	$ 45