COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - FUNDED STATUS (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Change in plan assets:
Cash surrender value of corporate-owned life insurance	$ 162,900	$ 168,400
Accumulated other comprehensive loss (income)
Prior service cost	1,957	11,378
Actuarial losses (gains)	1,716,838	1,632,547
Total	1,718,795	1,643,925
Accumulated benefit obligation for all pension benefit plans	5,400,000	4,900,000
Other Postretirement Plans
Change in benefit obligation:
Benefit obligation at beginning of year	10,800
Benefit obligation at end of year	10,900	10,800
Change in plan assets:
Cash surrender value of corporate-owned life insurance	94,000	97,700
Pension Benefits and SERP | United States
Change in benefit obligation:
Benefit obligation at beginning of year	4,537,648	4,043,011
Service cost	15,532	13,977
Interest cost	164,756	172,213
Amendments	(2,077)	0
Curtailments	0	0
Plan Combinations	0	0
Actuarial (gain) loss, net	464,475	439,082
Total disbursements	(140,616)	(130,635)
Exchange rate changes	0	0
Benefit obligation at end of year	5,039,718	4,537,648	$ 4,043,011
Change in plan assets:
Fair value of plan assets at beginning of year	3,984,154	3,666,408
Actual return on plan assets	533,676	418,789
Employer contribution	31,525	29,592
Total disbursements	(140,616)	(130,635)
Exchange rate changes	0	0
Fair value of plan assets at end of year	4,408,739	3,984,154	3,666,408
Funded status at end of year	(630,979)	(553,494)
Accumulated benefit obligations/aggregate benefit obligation in excess of fair value of plan assets
Pension Benefits, Accumulated benefit obligation/aggregate benefit obligation	5,025,168	4,524,513
Pension Benefits, Fair value of plan assets at end of year	4,408,739	3,984,154
Pension Benefits
Change in plan assets:
Employer contribution	38,700	37,200
Pension Benefits | United States
Change in benefit obligation:
Service cost	15,531	13,977	14,514
Interest cost	164,756	172,213	173,827
Change in plan assets:
Fair value of plan assets at beginning of year	3,984,154
Fair value of plan assets at end of year	4,408,739	3,984,154
Amounts recognized in the balance sheets
Noncurrent assets (Other assets)	0	0
Current accrued benefit liability (Accrued expenses)	(31,121)	(31,652)
Noncurrent accrued benefit liability (Other long-term liabilities)	(599,858)	(521,842)
Net amount recognized	(630,979)	(553,494)
Accumulated other comprehensive loss (income)
Prior service cost	1,176	10,790
Actuarial losses (gains)	1,687,105	1,599,539
Total	1,688,281	1,610,329
Pension Benefits | International Plan
Change in benefit obligation:
Benefit obligation at beginning of year	406,697	399,000
Service cost	2,800	2,790	3,219
Interest cost	8,681	10,637	10,667
Amendments	661	3,050
Curtailments	(4,012)	0
Plan Combinations	0	173
Actuarial (gain) loss, net	21,157	20,783
Total disbursements	(11,155)	(14,398)
Exchange rate changes	(10,723)	(15,338)
Benefit obligation at end of year	414,106	406,697	399,000
Change in plan assets:
Fair value of plan assets at beginning of year	264,746	258,028
Actual return on plan assets	35,594	23,765
Employer contribution	7,141	7,612
Total disbursements	(11,155)	(14,398)
Exchange rate changes	(8,135)	(10,261)
Fair value of plan assets at end of year	288,191	264,746	$ 258,028
Funded status at end of year	(125,915)	(141,951)
Amounts recognized in the balance sheets
Noncurrent assets (Other assets)	0	0
Current accrued benefit liability (Accrued expenses)	(1,359)	(1,285)
Noncurrent accrued benefit liability (Other long-term liabilities)	(124,556)	(140,666)
Net amount recognized	(125,915)	(141,951)
Accumulated other comprehensive loss (income)
Prior service cost	781	588
Actuarial losses (gains)	29,733	33,008
Total	30,514	33,596
Accumulated benefit obligations/aggregate benefit obligation in excess of fair value of plan assets
Pension Benefits, Accumulated benefit obligation/aggregate benefit obligation	407,181	399,966
Pension Benefits, Fair value of plan assets at end of year	288,191	264,746
Supplemental executive retirement plan
Change in plan assets:
Long-term defined benefit pension liabilities	$ 474,900	$ 468,000