Debt - long-term debt (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 27, 2025	Jun. 28, 2025
Debt Instrument [Line Items]
Long-term debt before discount and debt issuance costs	$ 2,497,201	$ 2,583,561
Discount and debt issuance costs - unamortized	(23,101)	(8,832)
Long-term debt	$ 2,474,100	$ 2,574,729
Accounts receivable securitization program
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate		5.18%
Long-term debt before discount and debt issuance costs		$ 500,000
Line of credit
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate	4.31%
Long-term debt before discount and debt issuance costs	$ 176,583
Other long-term debt
Debt Instrument [Line Items]
Long-term debt, stated interest rate	4.74%	4.74%
Long-term debt before discount and debt issuance costs	$ 20,618	$ 21,975
Revolving credit facilities | Line of credit
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate		5.46%
Long-term debt before discount and debt issuance costs		$ 411,586
Notes due | Notes Due April 2026
Debt Instrument [Line Items]
Long-term debt, stated interest rate	4.63%	4.63%
Long-term debt before discount and debt issuance costs	$ 550,000	$ 550,000
Long-term debt	$ 550
Notes due | Notes Due March 2028
Debt Instrument [Line Items]
Long-term debt, stated interest rate	6.25%	6.25%
Long-term debt before discount and debt issuance costs	$ 500,000	$ 500,000
Notes due | Convertible Notes Due September 2030
Debt Instrument [Line Items]
Long-term debt, stated interest rate	1.75%
Long-term debt before discount and debt issuance costs	$ 650,000
Notes due | Notes Due May 2031
Debt Instrument [Line Items]
Long-term debt, stated interest rate	3.00%	3.00%
Long-term debt before discount and debt issuance costs	$ 300,000	$ 300,000
Notes due | Notes Due June 2032
Debt Instrument [Line Items]
Long-term debt, stated interest rate	5.50%	5.50%
Long-term debt before discount and debt issuance costs	$ 300,000	$ 300,000