Intangible Assets

6 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets

Intangible assets consisted of the following:

	As of September 30, 2019
(in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Software	$	4,195	$	2,438	$	1,757
Customer related intangible assets	5,759		1,445		4,314
Other intangible assets	255		33		222
Total intangible assets	$	10,209	$	3,916	$	6,293

	As of March 31, 2019
(in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Software	$	3,864	$	2,235	$	1,629
Customer related intangible assets	5,389		1,139		4,250
Other intangible assets	85		25		60
Total intangible assets	$	9,338	$	3,399	$	5,939

The components of amortization expense were as follows:

	Three Months Ended				Six Months Ended
(in millions)	September 30, 2019		September 30, 2018		September 30, 2019		September 30, 2018
Intangible asset amortization	$	239	$	214	$	475	$	440
Transition and transformation contract cost amortization(1)	59		73		126		129
Total amortization expense	$	298	$	287	$	601	$	569

⁽¹⁾  Transaction and transformation contract costs are included within other assets on the balance sheet.

Estimated future amortization related to intangible assets as of September 30, 2019 is as follows:

Fiscal Year	(in millions)
Remainder of 2020	$	568
2021	$	997
2022	$	915
2023	$	853
2024	$	780