Derivative Financial Instruments - Hedging of Debt Portfolio (Details) - 6 months ended Dec. 28, 2019 € in Millions, £ in Millions, kr in Millions, gal in Millions, $ in Millions	USD ($) gal	GBP (£)	EUR (€)	SEK (kr)
Interest rate swap, October 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	$ 750
Interest rate swap, July 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	500
Interest rate swaps, June 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value | €			€ 500
Interest rate swap, March 2025
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	$ 500
Foreign Currency Interest Rate, Various Maturity Dates
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value		£ 23		kr 281
Hedging of foreign currency risk, GBP, July 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value | £		234
Hedging of foreign currency risk, GBP, August 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value | £		£ 466
Hedging of foreign currency risk, Euro, June 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value | €			€ 500
Fuel swaps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount (in gallons) | gal	54