External financing (Details) (USD $)	Jun. 30, 2012	Jul. 02, 2011
Components of short-term debt
Bank credit facilities	$ 201,390,000	$ 81,951,000
Borrowings under the accounts receivable securitization program (see Note 3)	670,000,000	160,000,000
Other debt due within one year	1,014,000	1,128,000
Short-term debt	$ 872,404,000	$ 243,079,000