Goodwill (Tables)

12 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Changes In The Carrying Amount Of Goodwill

The changes in the carrying amount of goodwill for the fiscal year ended March 31, 2018 are as follows (in millions):

	As of March 31, 2017			Activity		Effects of Foreign Currency Translation		As of March 31, 2018
Goodwill	$	2,075		$	171	$	5	$	2,251
Accumulated impairment	(368		)	—		—		(368		)
Total	$	1,707		$	171	$	5	$	1,883

The changes in the carrying amount of goodwill for the fiscal year ended March 31, 2017 are as follows (in millions):

	As of March 31, 2016			Activity		Effects of Foreign Currency Translation			As of March 31, 2017
Goodwill	$	2,078		$	—	$	(3	)	$	2,075
Accumulated impairment	(368		)	—		—			(368		)
Total	$	1,710		$	—	$	(3	)	$	1,707

Schedule Of Acquisition-Related Intangibles

Acquisition-related intangibles, consisted of the following (in millions):

	As of March 31, 2018							As of March 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Acquisition- Related Intangibles, Net		Gross Carrying Amount		Accumulated Amortization			Acquisition- Related Intangibles, Net
Developed and core technology	$	417	$	(414	)	$	3	$	412	$	(412	)	$	—
Trade names and trademarks	161		(107		)	54		106		(98		)	8
Registered user base and other intangibles	5		(5		)	—		5		(5		)	—
Carrier contracts and related	85		(85		)	—		85		(85		)	—
In-process research and development	14		—			14		—		—			—
Total	$	682	$	(611	)	$	71	$	608	$	(600	)	$	8

The fair value of acquisition-related intangible assets acquired in the Respawn acquisition was $74 million, of which $55 million was allocated to trade names and trademarks, $14 million was allocated to in-process research and development, and $5 million was allocated to developed and core technology. In-process research and development assets are considered indefinite-lived until complete. Excluding the in-process research and development assets, the weighted-average useful life of the Respawn acquired intangible assets was approximately 4.7 years.

Schedule Of Amortization Of Intangible Assets

Amortization of intangibles for the fiscal years ended March 31, 2018, 2017 and 2016 are classified in the Consolidated Statement of Operations as follows (in millions):

	Year Ended March 31,
	2018		2017		2016
Cost of service and other	$	—	$	16	$	33
Cost of product	2		27		14
Operating expenses	9		6		7
Total	$	11	$	49	$	54

Schedule Of Future Amortization Of Acquisition-Related Intangibles

As of March 31, 2018, future amortization of finite-lived acquisition-related intangibles that will be recorded in the Consolidated Statement of Operations is estimated as follows (in millions):

Fiscal Year Ending March 31,
2019	$	16
2020	11
2021	11
2022	11
2023	8
Thereafter	—
Total	$	57