Leases - Narrative (Details) $ in Millions	6 Months Ended
	Sep. 30, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Extension term	10 years
Discontinued Operations - Held for sale | HHS Business
Lessee, Lease, Description [Line Items]
Operating right-of-use assets, net	$ 74
Long-term operating lease liabilities	$ 75
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Termination term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	12 years
Termination term	3 years