Pensions and Other Post-retirement Benefit Plans - Additional Information (Details) - USD ($)	12 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jun. 29, 2018
Defined Benefit Plan Disclosure [Line Items]
Actuarial pension gains (losses)	$ 5,000,000	$ 34,000,000	$ 1,000,000
Pension Plan | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	366,000,000
Actuarial pension gains (losses)	(67,000,000)
Prior service credits for defined benefit pension plans included in accumulated other comprehensive income at the balance sheet date	$ 0
Defined benefit pension plan, estimated expenditure (years)	5 years
Debt Securities | Pension Plan | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation for securities	62.00%
Equity securities | Pension Plan | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation for securities	35.00%
Other Assets | Pension Plan | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation for securities	3.00%