Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill for the six months ended June 30, 2015 were as follows (in millions, unaudited):



Balance as of December 31, 2014	$	15,599
Goodwill acquired	55
Goodwill adjustment	(44		)
Balance as of June 30, 2015	$	15,610

Schedule of Acquired Finite-Lived Intangible Assets by Major Class

Information regarding our purchased intangible assets was as follows (in millions):



	As of December 31, 2014
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
Patents and developed technology	$	6,547	$	2,513	$	4,034
Customer relationships	1,410		1,168		242
Trade names and other	696		365		331
Total	$	8,653	$	4,046	$	4,607

	As of June 30, 2015
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
	(unaudited)
Patents and developed technology	$	6,571	$	2,852	$	3,719
Customer relationships	1,370		1,193		177
Trade names and other	737		420		317
Total	$	8,678	$	4,465	$	4,213

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

As of June 30, 2015, expected amortization expense relating to purchased intangible assets for each of the next five years and thereafter was as follows (in millions, unaudited):



Remainder of 2015	$	430
2016	797
2017	720
2018	635
2019	526
Thereafter	1,105
	$	4,213