Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized tax benefits expected to settle	$ 95
Tax benefit of stock compensation plan transactions	2	$ 6	$ 10
Unremitted foreign subsidiary earnings considered permanently reinvested	8,300
Tax holiday benefit in Singapore and Malaysia jurisdictions	16	$ 11	$ 3
Settlement with Taxing Authority [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized tax benefits expected to settle	$ 85