Income Taxes - Components of Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Allowance for sales returns and price protection	$ 19	$ 25
Accrued expenses	28	26
Deferred revenue	119	136
Tax attributes carryforwards	93	81
Share-based compensation	54	69
Intangibles	1,289	43
U.S. deferred taxes on foreign earnings	0	318
Capitalized software development expenses	67	0
Other	109	28
Deferred tax assets	1,778	726
Valuation allowance	(181)	(61)
Deferred tax assets, net of valuation allowance	1,597	665
Deferred tax liabilities:
Intangibles	(142)	(140)
Capitalized software development expenses	0	(57)
U.S. deferred taxes on foreign earnings	(594)	0
Other	(73)	(26)
Deferred tax liabilities	(809)	(223)
Net deferred tax assets	$ 788	$ 442