External financing (Details Textuals) (USD $)	3 Months Ended
	Sep. 29, 2012	Jun. 30, 2012
External Financing [Abstract]
Company's debt, carrying value	$ 2,348,428,000
Company's debt, fair value	2,478,722,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility Term	5 years
Line of Credit Facility, Maximum Borrowing Capacity	1,000,000,000
Line of credit facility expiration date	November 2016
Line of credit facility, amount outstanding	240,000,000	110,072,000
Letters of credit outstanding, amount	17,309,000	17,202,000
Bank Credit Facilities [Member]
Debt Instrument [Line Items]
Weighted average interest rate on bank credit facilities	6.60%	6.10%
Accounts Receivable Securitization Program [Member]
Debt Instrument [Line Items]
Accounts receivable securitization program maximum borrowing amount	$ 800,000,000	$ 750,000,000
Accounts Receivable Securitization Program Loan Term	1 year
Accounts Receivable securitization program, expiration date	August 2013
Terms on which interest on borrowings is calculated	base rate or a commercial paper rate plus a spread
Interest on borrowings	0.35%
Program facility fee	0.35%