Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating loss and credit carryforwards	$ 182	$ 196
Accruals and allowances	235	179
Lease liability	120	0
Partnership investment	8	9
Stock-based compensation	160	136
Net unrealized losses	5	8
Fixed assets and other intangibles	88	0
Total deferred tax assets	798	528
Valuation allowance	(184)	(132)
Net deferred tax assets	614	396
Deferred tax liabilities:
Unremitted foreign earnings	(17)	(35)
Fixed assets and other intangibles	0	(58)
Acquired intangibles	(103)	(167)
Lease asset	(116)	0
Net unrealized gains	(71)	(21)
Total deferred tax liabilities	(307)	(281)
Net deferred tax assets	$ 307	$ 115