Sale of Receivables (Details) - USD ($)		3 Months Ended	6 Months Ended
	Apr. 21, 2015	Oct. 02, 2015	Oct. 02, 2015
Other Income (Expense)
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Purchase discount and administrative fees, less than		$ 1,000,000	$ 1,000,000
Prepaid Expenses and Other Current Assets
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Cash collected held as restricted cash		7,000,000	7,000,000
Other Assets, Non Current
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Restricted cash as recourse for accrued purchase discount and administrative fees		2,000,000	2,000,000
The Royal Bank of Scotland, PLC
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Receivables sold		619,000,000	1,333,000,000
Cash remitted for collections		609,000,000	1,156,000,000
Net proceeds from sale of receivables		$ 9,000,000	$ 176,000,000
The Royal Bank of Scotland, PLC
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Term of uncommitted receivables purchase facility	2 years
Receivables purchase facility commitment amount	$ 450,000,000