Derivative Financial Instruments - Hedging of Debt Portfolio (Details) - 3 months ended Sep. 28, 2019 € in Millions, £ in Millions, kr in Millions, gal in Millions, $ in Millions, $ in Millions	GBP (£) gal	EUR (€)	CAD ($)	USD ($)	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 280
Hedging of foreign currency risk, CAD, June 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value			$ 187
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	55