Supplemental Statement of Cash Flows Information 1 (Details) - Notional Pooling Arrangement - USD ($) $ in Millions		9 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Notional pooling arrangement
Borrowings		$ 1,581	$ 1,391
Repayments		(1,612)	(1,365)
Foreign exchange effect		33	(26)
Accrued Expenses and Other Current Liabilities
Notional pooling arrangement
Total borrowings outstanding at beginning of period	[1]	137	139
Total borrowings outstanding at end of period	[1]	$ 139	$ 139

[1] Included in “Accrued expenses and other current liabilities” in the Company’s Condensed Consolidated Balance Sheets.