Accrued Expenses and Other Current Liabilities (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Accrued Expenses and Other Current Liabilities [Abstract]
Accrued compensation and benefits	$ 182	$ 130
Accrued interest payable	66	67
Accrued income taxes	31	28
Other current liabilities	268	272
Accrued expenses and other current liabilities	547	497
Accrued expenses and other current liabilities — related party	$ 250	$ 0