Acquisitions Goodwill and Acquired Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period	[1]	3 years 11 months
Net sales of acquired companies included in our consolidated financial statements since acquisition dates		$ 23
Operating income (loss) of acquired companies included in our consolidated financial statements since acquisition dates		(112)
Acquired goodwill		3,759	$ 3,319	$ 2,655
Amortization expense for acquired intangibles		228	181	168
Twitch Interactive, Inc.
Business Acquisition [Line Items]
Aggregate purchase price			$ 842
Business Acquisition, Effective Date of Acquisition			Sep. 25, 2014
2014 Acquisitions
Business Acquisition [Line Items]
Aggregate purchase price			$ 20
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Aggregate purchase price		$ 690	$ 862	195
Acquired intangibles weighted average amortization period		5 years	5 years
Fair value of assumed stock options			$ 39
Fair value of assumed stock options and restricted stock options		$ 9
Acquired goodwill		$ 482	$ 707	$ 103
Marketing-related
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		4 years 5 months
Contract-based
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		2 years 1 month
Technology-based
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		3 years 11 months
Customer-related
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		3 years 7 months
Minimum
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life		1 year
Minimum | Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life		1 year	1 year
Maximum
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life		10 years
Maximum | Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life		6 years	5 years

[1] Intangible assets have estimated useful lives of between one and ten years.