Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2017	Mar. 31, 2016
Accrued Expenses and Other Current Liabilities [Abstract]
Accrued compensation and benefits	$ 191	$ 174
Accrued interest payable	60	66
Accrued income taxes	28	13
Other current liabilities	275	316
Accrued expenses and other current liabilities — third parties	$ 554	$ 569