External financing (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Jun. 30, 2012
Components of short-term debt
Short-term debt	$ 578,554	$ 872,404
Bank Credit Facilities [Member]
Components of short-term debt
Short-term debt	166,201	201,390
Borrowings Under the Accounts Receivable Securitization Program [Member]
Components of short-term debt
Short-term debt	411,000	670,000
Other Debt Due Within One Year [Member]
Components of short-term debt
Short-term debt	$ 1,353	$ 1,014