Company Restructuring (Details 2) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)
Restructuring Reserve
Balance as of December 31, 2016	$ 2
Expense incurred	5
Payments applied against liability	(3)
Balance as of March 31, 2017	4
Employee costs
Restructuring Reserve
Balance as of December 31, 2016	0
Expense incurred	3
Payments applied against liability	0
Balance as of March 31, 2017	3
Cumulative amount incurred to date for active programs	62
Exit costs
Restructuring Reserve
Balance as of December 31, 2016	2
Expense incurred	2
Payments applied against liability	(3)
Balance as of March 31, 2017	1
Cumulative amount incurred to date for active programs	$ 63