Debt financing (Details) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014	Jun. 28, 2014
Components of short-term debt
Short-term debt	$ 463,251	$ 865,088
Bank credit facilities and other
Components of short-term debt
Short-term Debt, Weighted Average Interest Rate	2.76%	3.20%
Short-term debt	213,251	250,088
Accounts receivable securitization program
Components of short-term debt
Short-term Debt, Weighted Average Interest Rate	0.00%	0.60%
Short-term debt	0	615,000
Notes due September 1, 2015
Components of short-term debt
Short-term Debt, Weighted Average Interest Rate	6.00%	0.00%
Short-term debt	$ 250,000	$ 0