Company Restructuring (Details 2) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)
Restructuring Reserve
Balance as of December 31, 2015	$ 2
Expense incurred	14
Payments applied against liability	(14)
Balance as of December 31, 2016	2
Employee costs
Restructuring Reserve
Balance as of December 31, 2015	1
Expense incurred	8
Payments applied against liability	(9)
Balance as of December 31, 2016	0
Cumulative amount incurred to date for active programs	78
Exit costs
Restructuring Reserve
Balance as of December 31, 2015	1
Expense incurred	6
Payments applied against liability	(5)
Balance as of December 31, 2016	2
Cumulative amount incurred to date for active programs	$ 66