Company Restructuring (Details 2) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)
Restructuring Reserve
Balance as of December 31, 2014	$ 4
Expense incurred	28
Adjustments to liability	(5)
Payments applied against liability	(25)
Balance as of December 31, 2015	2
Employee costs
Restructuring Reserve
Balance as of December 31, 2014	3
Expense incurred	18
Adjustments to liability	(5)
Payments applied against liability	(15)
Balance as of December 31, 2015	1
Cumulative amount incurred to date for active programs	83
Exit costs
Restructuring Reserve
Balance as of December 31, 2014	1
Expense incurred	10
Adjustments to liability	0
Payments applied against liability	(10)
Balance as of December 31, 2015	1
Cumulative amount incurred to date for active programs	$ 60