Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000718877 (http://www.sec.gov/CIK)

Income Tax Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Income Tax Disclosure [Abstract]
Schedule of domestic and foreign income (loss) and income tax expense (benefit)	Domestic and foreign income (loss) before income taxes and details of the income tax expense (benefit) are as follows (amounts in millions):   For the Years Ended December 31,   2016   2015   2014 Income before income tax expense:           Domestic $ 228   $ 355   $ 325 Foreign 878   766   656   $ 1,106   $ 1,121   $ 981 Income tax expense (benefit):           Current:           Federal $ (15 )   $ 169   $ 146 State 16   31   12 Foreign 150   40   38 Total current 151   240   196 Deferred:           Federal 40   1   26 State (13 )   (21 )   (18 ) Foreign (38 )   9   (58 ) Total deferred (11 )   (11 )   (50 )             Income tax expense $ 140   $ 229   $ 146
Reconciliation of income taxes at the U.S. federal statutory rate to income tax expense (benefit)	The items accounting for the difference between income taxes computed at the U.S. federal statutory income tax rate and the income tax expense (benefit) at the effective tax rate for each of the years are as follows (amounts in millions):   For the Years Ended December 31,   2016   2015   2014 Federal income tax provision at statutory rate $ 387   35  %   $ 392   35  %   $ 343   35  % State taxes, net of federal benefit 9   1   5   —   5   — Research and development credits (36 )   (3 )   (26 )   (2 )   (24 )   (2 ) Foreign rate differential (239 )   (22 )   (228 )   (20 )   (245 )   (25 ) Change in tax reserves 210   19   136   12   128   13 Net operating loss tax attribute assumed from the Purchase Transaction (114 )   (10 )   (63 )   (6 )   (52 )   (5 ) Excess tax benefit related to share-based payments (81 )   (7 )   —   —   —   — Other 4   —   13   1   (9 )   (1 ) Income tax expense $ 140   13  %   $ 229   20  %   $ 146   15  %
Schedule of the components of the net deferred tax assets (liabilities)	Deferred income taxes reflect the net tax effects of temporary differences between the amounts of assets and liabilities for accounting purposes and the amounts used for income tax purposes. The components of the net deferred tax assets (liabilities) are as follows (amounts in millions):   As of December 31,   2016   2015 Deferred tax assets:       Allowance for sales returns and price protection $ 66   $ 66 Inventory reserve 9   11 Accrued expenses 26   40 Deferred revenue 238   288 Tax credit carryforwards 71   58 Net operating loss carryforwards 10   10 Share-based compensation 63   54 Acquired intangibles 115   — Other 29   28 Deferred tax assets 627   555 Valuation allowance —   — Deferred tax assets, net of valuation allowance 627   555 Deferred tax liabilities:       Acquired intangibles (226 )   (166 ) Prepaid royalties (62 )   (30 ) Capitalized software development expenses (94 )   (81 ) State taxes (1 )   (7 ) Other (5 )   (6 ) Deferred tax liabilities (388 )   (290 ) Net deferred tax assets $ 239   $ 265
Reconciliation of unrecognized tax benefits for the period	As of December 31, 2016, we had approximately $846 million of gross unrecognized tax benefits, of which $812 million would affect our effective tax rate, if recognized. A reconciliation of total gross unrecognized tax benefits for the years ended December 31, 2016, 2015, and 2014 is as follows (amounts in millions):   For the Years Ended December 31,   2016   2015   2014 Unrecognized tax benefits balance at January 1 $ 552   $ 419   $ 294 Gross increase for tax positions of prior-years 89   8   2 Gross decrease for tax positions of prior-years (17 )   (11 )   — Gross increase for tax positions of current year 240   136   125 Settlement with taxing authorities (18 )   —   (2 ) Lapse of statute of limitations —   —   — Unrecognized tax benefits balance at December 31 $ 846   $ 552   $ 419