Acquisitions Goodwill and Acquired Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period	[1]	4 years 4 months
Acquired goodwill		$ 3,784	$ 3,759	$ 3,319
Amortization expense for acquired intangibles		287	270	215
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		$ 103	$ 690	$ 862
Acquired intangibles weighted average amortization period		5 years	5 years	5 years
Fair value of assumed stock options and restricted stock options		$ 0	$ 9	$ 39
Acquired goodwill		$ 60	$ 482	$ 707
Marketing-related
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		4 years 7 months
Contract-based
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		4 years 4 months
Technology-based
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		4 years 7 months
Customer-related
Business Acquisition [Line Items]
Acquired intangibles weighted average amortization period		2 years 8 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	1 year
Maximum
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life		20 years
Maximum | Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life		7 years	6 years	5 years

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