Intangible Assets

9 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets, including preliminary fair values of those recorded in the Mergers, consisted of the following:



	As of December 31, 2018
(in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Program assets	$	1,400	$	145	$	1,255
Software	83		47		36
Developed technology	105		13		92
Backlog	16		9		7
Outsourcing contract costs	21		6		15
Favorable leases	1		—		1
Total intangible assets	$	1,626	$	220	$	1,406



	As of March 31, 2018
(in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Program assets	$	900	$	69	$	831
Software	75		28		47
Outsourcing contract costs	20		1		19
Total intangible assets	$	995	$	98	$	897

Total intangible assets amortization was $43 million and $126 million for the three and nine months ended December 31, 2018, respectively, compared to $18 million and $54 million, respectively, for the three and nine months ended December 31, 2017.

The increase in net and gross carrying value for the nine months ended December 31, 2018, were primarily due to the Mergers. See Note 4 – “Acquisitions.”

Estimated future amortization related to intangible assets as of December 31, 2018 is as follows:



Fiscal Year	(in millions)
Remainder of fiscal year 2019	$	48
2020	122
2021	99
2022	90
2023	86
Thereafter	961
Total	$	1,406