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Income Taxes - Reconciliation from Federal Statutory Tax Rate to Effective Tax Rate (Details) | 6 Months Ended | 12 Months Ended
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Dec. 31, 2017 | Jun. 30, 2019 | Jun. 24, 2018 | Jun. 25, 2017
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Abstract] |  |  |  |
Federal statutory tax rate | 35.00% | 21.00% | 28.30% | 35.00%
Foreign income taxed at different rates |  | 16.10% | (2.40%) | (10.20%)
Repatriation of foreign earnings and withholding taxes |  | 20.30% | 1.80% | 1.40%
Repatriation of foreign earnings due to tax reform |  | 0.70% | 23.90% |
Revaluation of U.S. deferred balances due to tax reform |  | 3.10% | (14.20%) |
U.S. tax on GILTI |  | 32.50% |  |
Change in valuation allowance |  | (1.50%) | (12.90%) | (0.50%)
Foreign tax credits |  | (11.90%) | (11.00%) |
Domestic production activities deduction |  | (5.60%) | 0.50% | 2.00%
Research and other credits |  | (7.70%) | (1.80%) | (5.10%)
State income taxes, net of federal tax benefit |  | (0.60%) | (3.90%) | 0.20%
Change in uncertain tax positions |  | 8.20% | (15.10%) | 1.80%
Nondeductible compensation |  | 5.10% | 1.60% |
Nontaxable income |  | (4.20%) |  |
Nondeductible expenses and other |  |  | 0.30% | 0.60%
Effective tax rate |  | 75.50% | (4.90%) | 25.20%

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