The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	5 Months Ended	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2017	Mar. 31, 2020	Mar. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 1,193		$ 1,193	$ 1,466
Amortization expense		$ 98	$ 229	$ 204
Program Assets and Outsourcing Contract Costs
Finite-Lived Intangible Assets [Line Items]
Impairment charge	$ 172
DXC
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net		$ 299