Income Taxes - Reconciliation from Federal Statutory Tax Rate to Effective Tax Rate (Details)	6 Months Ended	12 Months Ended
	Dec. 31, 2017	Jun. 28, 2020	Jun. 30, 2019	Jun. 24, 2018
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Abstract]
Federal statutory tax rate	35.00%	21.00%	21.00%	28.30%
Foreign income taxed at different rates		(1.20%)	16.10%	(2.40%)
Repatriation of foreign earnings and withholding taxes		(2.00%)	20.30%	1.80%
U.S. tax on GILTI		(5.00%)	32.50%
Change in valuation allowance		0.60%	(1.50%)	(12.90%)
Foreign tax credits		0.90%	(11.90%)	(11.00%)
Domestic production activities deduction			(5.60%)	0.50%
Research and other business credits		2.00%	(7.70%)	(1.80%)
State income taxes, net of federal tax benefit		2.60%	(0.60%)	(3.90%)
Change in uncertain tax positions		(0.30%)	8.20%	(15.10%)
Nondeductible compensation		(0.80%)	5.10%	1.60%
Nontaxable income		1.10%	(4.20%)
Valuation allowance related to loss on sale of investment in PAL		(19.30%)
Tax expense on unremitted foreign earnings		(0.90%)
Toll charge			0.70%	23.90%
Revaluation of U.S. deferred balances due to U.S. tax reform			3.10%	(14.20%)
Nondeductible expenses and other		(0.40%)		0.30%
Effective tax rate		(1.70%)	75.50%	(4.90%)