Accumulated Other Comprehensive Income Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
AOCI Attributable to Parent [Roll forward] [Abstract]
Balance at year-end, beginning balance	$ (70)	$ (44)	$ (44)
Other comprehensive income (loss) before reclassifications	(120)	(28)	6
Amounts reclassified from accumulated other comprehensive loss	(6)	2	(6)
Net other comprehensive income (loss)	(126)	(26)	0
Balance at year-end, ending balance	(196)	(70)	(44)
Other comprehensive income (loss), before reclassifications, unrealized gains on available-for-sale securities, deferred tax	4	3	2
Other comprehensive income (loss), foreign currency translation and translation gain (loss), before reclassification and tax, intra-entity foreign currency transactions long-term-investment nature	48	28	(20)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent [Roll forward] [Abstract]
Balance at year-end, beginning balance	(72)	(31)	(32)
Other comprehensive income (loss) before reclassifications	(123)	(41)	1
Amounts reclassified from accumulated other comprehensive loss	3	0	0
Net other comprehensive income (loss)	(120)	(41)	1
Balance at year-end, ending balance	(192)	(72)	(31)
Derivative Instrument Adjustments
AOCI Attributable to Parent [Roll forward] [Abstract]
Balance at year-end, beginning balance	(9)	(19)	(19)
Other comprehensive income (loss) before reclassifications	10	8	0
Amounts reclassified from accumulated other comprehensive loss	(9)	2	0
Net other comprehensive income (loss)	1	10	0
Balance at year-end, ending balance	(8)	(9)	(19)
Available-For-Sale Securities Unrealized Adjustments
AOCI Attributable to Parent [Roll forward] [Abstract]
Balance at year-end, beginning balance	11	6	7
Other comprehensive income (loss) before reclassifications	(7)	5	5
Amounts reclassified from accumulated other comprehensive loss	0	0	(6)
Net other comprehensive income (loss)	(7)	5	(1)
Balance at year-end, ending balance	$ 4	$ 11	$ 6