Goodwill And Acquisition-Related Intangibles, Net (Tables)

9 Months Ended

Dec. 31, 2019

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 nine months ended December 31, 2019 are as follows (in millions):

	As of March 31, 2019			Activity		Effects of Foreign Currency Translation		As of December 31, 2019
Goodwill	$	2,260		$	—	$	—	$	2,260
Accumulated impairment	(368		)	—		—		(368		)
Total	$	1,892		$	—	$	—	$	1,892

Schedule Of Acquisition-Related Intangibles

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

	As of December 31, 2019							As of March 31, 2019
	Gross Carrying Amount		Accumulated Amortization			Acquisition- Related Intangibles, Net		Gross Carrying Amount		Accumulated Amortization			Acquisition- Related Intangibles, Net
Developed and core technology	$	474	$	(444	)	$	30	$	469	$	(427	)	$	42
Trade names and trademarks	161		(129		)	32		161		(121		)	40
Registered user base and other intangibles	5		(5		)	—		5		(5		)	—
Carrier contracts and related	85		(85		)	—		85		(85		)	—
In-process research and development	—		—			—		5		—			5
Total	$	725	$	(663	)	$	62	$	725	$	(638	)	$	87

Schedule Of Amoritization Of Intangibles

Amortization of intangibles for the three and nine months ended December 31, 2019 and 2018 are classified in the Condensed Consolidated Statements of Operations as follows (in millions):

	Three Months Ended December 31,				Nine Months Ended December 31,
	2019		2018		2019		2018
Cost of product	$	3	$	1	$	3	$	3
Cost of service and other	2		—		6		—
Operating expenses	5		6		16		18
Total	$	10	$	7	$	25	$	21

Schedule Of Future Amortization Of Acquisition-Related Intangibles

As of December 31, 2019, future amortization of finite-lived acquisition-related intangibles that will be recorded in the Condensed Consolidated Statements of Operations is estimated as follows (in millions):

Fiscal Year Ending March 31,
2020 (remaining three months)	$	10
2021	22
2022	22
2023	8
2024 and thereafter	—
Total	$	62