Intangible Assets (Tables)

3 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Amortizable Intangible Assets

	As of June 30, 2017
(in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Software	$	3,315	$	1,613	$	1,702
Outsourcing contract costs	813		490		323
Customer related intangible assets	4,819		265		4,554
Other intangible assets	293		22		271
Total intangible assets	$	9,240	$	2,390	$	6,850

	As of March 31, 2017
(in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Software	$	2,347	$	1,554	$	793
Outsourcing contract costs	793		475		318
Customer related intangible assets	851		248		603
Other intangible assets	96		16		80
Total intangible assets	$	4,087	$	2,293	$	1,794

Estimated Future Amortization of Intangible Assets

Estimated future amortization related to intangible assets as of June 30, 2017 is as follows:

Fiscal Year	(in millions)
Remainder of 2018	$	698
2019	$	807
2020	$	747
2021	$	692
2022	$	630