Supplemental Statement of Cash Flows Information 1 (Details) - Notional Pooling Arrangement - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
Notional pooling arrangement
Borrowings		$ 571	$ 737
Repayments		(547)	(755)
Foreign exchange effect		(22)	20
Accrued Expenses and Other Current Liabilities
Notional pooling arrangement
Total borrowings outstanding at beginning of period	[1]	137	137
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.