Debt financing (Details Textuals) (USD $)			3 Months Ended
	Sep. 27, 2014	Jun. 28, 2014	Sep. 27, 2014 Accounts Receivable Securitization Program [Member]	Sep. 27, 2014 Base Rate or Commercial Paper [Member] Accounts Receivable Securitization Program [Member]	Sep. 27, 2014 2014 Credit Facility	Sep. 27, 2014 2014 Credit Facility Unsecured Debt [Member]	Sep. 27, 2014 2014 Credit Facility Letter of Credit [Member]	Jun. 28, 2014 2012 Credit Facility Letter of Credit [Member]
Debt Instrument [Line Items]
Accounts receivable securitization program maximum borrowing amount			$ 900,000,000
Receivables Owned by Special Purpose Entity	1,450,000,000	1,650,000,000
Accounts receivable securitization program loan term			2 years
Accounts receivable securitization program, expiration date			August 2016
Terms on which interest on borrowings is calculated				base rate or a commercial paper rate
Interest on borrowings spread				0.38%
Program facility fee			0.38%
Line of credit facility term					5 years
Line of credit facility, maximum borrowing capacity						1,250,000,000	150,000,000
Line of credit facility expiration date					Jul. 01, 2019
Letters of credit outstanding, amount							2,000,000	2,000,000
Debt Financing [Abstract]
Company's debt, carrying value	2,090,000,000	2,080,000,000
Company's debt, fair value	$ 2,180,000,000	$ 2,190,000,000