CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net revenues
Net revenues	$ 2,381	$ 1,512	$ 1,641	$ 1,965	$ 2,043	$ 1,618	$ 1,631	$ 1,726	$ 7,500	$ 7,017	$ 6,608
Cost of revenues:
Cost of revenues	832	513	510	662	803	552	561	585
Product development									1,101	1,069	958
Sales and marketing									1,062	1,378	1,210
General and administrative									832	760	634
Total costs and expenses									5,512	5,708	5,196
Operating income	694	265	434	595	221	257	339	493	1,988	1,309	1,412
Interest and other expense (income), net (Note 17)									71	146	214
Loss on extinguishment of debt									40	12	92
Income before income tax expense									1,877	1,151	1,106
Income tax expense									64	878	140
Net income	$ 650	$ 260	$ 402	$ 500	$ (584)	$ 188	$ 243	$ 426	$ 1,813	$ 273	$ 966
Earnings per common share
Basic (in dollars per share)	$ 0.85	$ 0.34	$ 0.53	$ 0.66	$ (0.77)	$ 0.25	$ 0.32	$ 0.57	$ 2.38	$ 0.36	$ 1.30
Diluted (in dollars per share)	$ 0.84	$ 0.34	$ 0.52	$ 0.65	$ (0.77)	$ 0.25	$ 0.32	$ 0.56	$ 2.35	$ 0.36	$ 1.28
Weighted-average number of shares outstanding
Basic (in shares)									762	754	740
Diluted (in shares)									771	766	754
Product sales
Net revenues
Net revenues									$ 2,255	$ 2,110	$ 2,196
Product costs
Cost of revenues:
Cost of revenues									719	733	741
Software royalties, amortization, and intellectual property licenses
Cost of revenues:
Cost of revenues									371	300	331
Subscription, licensing, and other revenues
Net revenues
Net revenues									5,245	4,907	4,412
Game operations and distribution costs
Cost of revenues:
Cost of revenues									1,028	984	851
Software royalties, amortization, and intellectual property licenses
Cost of revenues:
Cost of revenues									$ 399	$ 484	$ 471