Financing Arrangements (Details) € in Millions, £ in Millions, NZD in Millions, AUD in Millions, $ in Millions	6 Months Ended
	Jun. 28, 2015 USD ($)	Dec. 28, 2014 USD ($)	Dec. 18, 2014 GBP (£)	Dec. 18, 2014 EUR (€)	Aug. 29, 2014 NZD	Aug. 29, 2014 AUD	May. 28, 2014 USD ($)
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Amount of accounts receivable securitization program			£ 90	€ 35	NZD 50	AUD 70	$ 175
Amount of amended accounts receivable securitization program	$ 150
Receivables derecognized under receivable securitization program	259	$ 284
Fair value of deferred purchase price	$ 129	$ 161
Maximum
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Accounts receivables securitization program, cash consideration, percent	95.00%