Company Restructuring (Details 2) - Jun. 30, 2015 - USD ($) $ in Millions	Total
Restructuring Reserve
Balance as of December 31, 2014	$ 4
Expense incurred	14
Adjustments to liability	0
Payments applied against liability	(1)
Balance as of June 30, 2015	17
Employee costs
Restructuring Reserve
Balance as of December 31, 2014	3
Expense incurred	14
Adjustments to liability	0
Payments applied against liability	(1)
Balance as of June 30, 2015	16
Cumulative amount incurred to date for active programs	83
Exit costs
Restructuring Reserve
Balance as of December 31, 2014	1
Expense incurred	0
Adjustments to liability	0
Payments applied against liability	0
Balance as of June 30, 2015	1
Cumulative amount incurred to date for active programs	$ 50