Income Tax Provision - Additional Information (Details) - USD ($)		12 Months Ended
	Oct. 02, 2015	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, Federal and State		$ 0	$ 99,000,000
Valuation Allowance		21,000,000	22,000,000
Unremitted earnings in foreign subsidiary		220,000,000	208,000,000
Income Tax Penalties Accrued		0	0	$ 0
Sale of Commercial Finance Business [Member]
Income Tax Disclosure [Line Items]
Tax expense resulting from taxable gain on sale	$ 89,000,000
Federal [Member]
Income Tax Disclosure [Line Items]
Operating Loss Carryforwards		0	912,000,000
State [Member]
Income Tax Disclosure [Line Items]
Operating Loss Carryforwards		$ 59,000,000	$ 67,000,000
Expiration Beginning Date [Member] | State [Member]
Income Tax Disclosure [Line Items]
Expiration Dates		Mar. 31, 2018
Maximum [Member] | State [Member]
Income Tax Disclosure [Line Items]
Expiration Dates		Mar. 31, 2036