Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net income (loss) used in computing net income (loss) per share, basic and diluted	$ 152	$ (26)	$ 96	$ (138)
Denominator:
Shares used in computing net income (loss) per share, basic	899,874,086	1,000	897,798,717	1,000
Effect of dilutive securities (in shares)	14,554,596	0	18,525,909	0
Total dilutive securities (in shares)	914,428,682	1,000	916,324,626	1,000
Basic net income (loss) per share (in dollars per share)	$ 0.17	$ (26,000)	$ 0.11	$ (138,000)
Diluted net income (loss) per share (in dollars per share)	$ 0.17	$ (26,000)	$ 0.10	$ (138,000)
Anti-dilutive shares excluded from diluted net income (loss) per share	29,697,196	0	28,270,165	0
Shares outstanding prior to merger		1,000		1,000