Acquisitions, Goodwill, and Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Acquisitions, Goodwill, and Acquired Intangible Assets [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The aggregate purchase price of these acquisitions was allocated as follows (in millions):

	December 31,
	2014			2015			2016
Purchase Price
Cash paid, net of cash acquired	$	813		$	599		$	81
Stock options assumed	44			5			—
Indemnification holdback	5			86			22
	$	862		$	690		$	103
Allocation
Goodwill	$	707		$	482		$	60
Intangible assets (1):
Marketing-related	23			3			2
Contract-based	1			1			1
Technology-based	33			208			53
Customer-related	173			18			1
	230			230			57
Property and equipment	16			4			3
Deferred tax assets	64			55			17
Other assets acquired	34			53			10
Deferred tax liabilities	(88		)	(85		)	(18		)
Other liabilities assumed	(101		)	(49		)	(26		)
	$	862		$	690		$	103

 ___________________

(1) Intangible assets acquired in 2014, 2015, and 2016 have estimated useful lives of between one and five years, one and six years, and one and seven years, with weighted-average amortization periods of five years, five years, and five years.

Schedule of Goodwill

The following summarizes our goodwill activity in 2015 and 2016 by segment (in millions):

	North America			International			AWS			Consolidated
Goodwill - January 1, 2015	$	2,584		$	735		$	—		$	3,319
Segment reallocation—January 1, 2015 (1)	(606		)	—			606			—
New acquisitions	41			18			423			482
Other adjustments (2)	(7		)	(34		)	(1		)	(42		)
Goodwill - December 31, 2015	2,012			719			1,028			3,759
New acquisitions	30			13			17			60
Other adjustments (2)	2			(38		)	1			(35		)
Goodwill - December 31, 2016	$	2,044		$	694		$	1,046		$	3,784

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(1) In conjunction with the change in reportable segments in the first quarter of 2015 to include the AWS segment, we reallocated goodwill on a relative fair value basis.

(2) Primarily includes changes in foreign exchange rates.

Schedule of Acquired Finite-Lived Intangible Assets by Major Class

Acquired intangible assets, included within “Other assets” on our consolidated balance sheets, consist of the following (in millions):

	December 31,
	2015							2016
	Acquired Intangibles, Gross (1)		Accumulated Amortization (1)			Acquired Intangibles, Net		Acquired Intangibles, Gross (1)		Accumulated Amortization (1)			Acquired Intangibles, Net		Weighted Average Life Remaining
Marketing-related	$	502	$	(252	)	$	250	$	499	$	(299	)	$	200	4.6
Contract-based	331		(174		)	157		397		(212		)	185		4.3
Technology- and content-based	683		(268		)	415		705		(353		)	352		4.6
Customer-related	331		(161		)	170		299		(182		)	117		2.7
Acquired intangibles (2)	$	1,847	$	(855	)	$	992	$	1,900	$	(1,046	)	$	854	4.3

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(1) Excludes the original cost and accumulated amortization of fully-amortized intangibles.

(2) Intangible assets have estimated useful lives of between one and twenty years.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Expected future amortization expense of acquired intangible assets as of December 31, 2016 is as follows (in millions):

Year Ended December 31,
2017	$	264
2018	203
2019	170
2020	103
2021	38
Thereafter	76
	$	854