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Income Tax Expense (Benefit) - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 29, 2019 | Dec. 28, 2018 | Sep. 28, 2018 | Mar. 30, 2018 | Mar. 31, 2017 | Mar. 29, 2019 | Mar. 30, 2018 | Mar. 31, 2017 | Jun. 29, 2018
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Provisional income tax expense (benefit) related to remeasurement of deferred tax balances |  |  |  |  |  |  |  |  | $ (65)
Additional income tax expense (benefit) due to remeasurement of deferred tax balances | $ 5 |  |  |  |  |  |  |  |
Deferred tax liabilities, projected effective rate at which position will reverse | 22.00% |  |  |  |  | 22.00% |  |  |
Mandatory deemed repatriation tax liability, provisional amount |  |  |  |  |  |  | $ 1,660 |  | $ 1,570
Increase (decrease) in mandatory deemed repatriation liability | $ (105) | $ 95 | $ (302) |  |  |  |  |  |
Reduction in mandatory deemed repatriation liability, utilization of DTA | $ (41) |  | (250) |  |  |  |  |  |
Reduction in mandatory deemed repatriation liability, utilization of existing operating losses |  |  | $ (52) |  |  |  |  |  |
Effective tax rate | (22.00%) |  | 28.00% | 148.00% |  | 398.00% | 106.00% |  |
Estimate of mandatory deemed repatriation tax liability after refinements | $ 1,250 | 1,360 | $ 1,260 |  |  |  |  |  |
Unrecognized tax benefits excluded | 146 | $ 135 |  |  |  | $ 146 |  |  |
Income tax expense (benefit) resulting from the utilization of DTA | (19) |  |  |  |  |  |  |  |
Reduction in mandatory deemed repatriation liability, favorable final IRS regulation | 64 |  |  |  |  |  |  |  |
Increase (decrease) in unrecognized tax benefits excluded | 11 |  |  |  |  |  |  |  |
Foreign income tax expense |  |  |  |  |  | 279 |  |  |
Foreign tax credit | 95 |  |  |  |  | 95 |  |  |
Income tax expense (benefit) | 104 |  |  | $ (189) |  | 744 | $ 1,437 |  |
Valuation allowance, deferred tax asset, increase (decrease), amount |  |  |  |  |  | (45) |  |  |
Discrete effects related to mandatory deemed repatriation tax | 71 |  |  |  |  | 107 |  |  |
Discrete effects related to change in indefinite reinvestment assertion |  |  |  |  |  | 152 |  |  |
U.S. Federal statutory rate |  |  |  | 28.00% |  |  |  |  |
Income tax benefit from deductible make-whole premiums and write-off of debt issuance costs |  |  |  | $ 211 |  |  |  |  |
Windfall tax benefits |  |  |  |  | $ 46 |  |  | $ 73 |
Increase in unrecognized tax benefits |  |  |  |  |  | 157 |  |  |
Unrecognized tax benefits | 708 |  |  |  |  | 708 |  |  |
Unrecognized tax benefits, income tax penalties and interest accrued | $ 120 |  |  |  |  | 120 |  |  |
State and Local Jurisdiction |  |  |  |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Income tax expense (benefit) |  |  |  |  |  | $ 54 |  |  |
Maximum |  |  |  |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Deferred tax assets, projected effective rate at which position will reverse | 29.00% |  |  |  |  | 29.00% |  |  |
Minimum |  |  |  |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Deferred tax liabilities, projected effective rate at which position will reverse | 22.00% |  |  |  |  | 22.00% |  |  |
Internal Revenue Service (IRS) |  |  |  |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Federal tax related to adjustments for transfer pricing |  |  |  |  |  | $ 535 |  |  |
Internal Revenue Service (IRS) | Tax Year 2008 Through 2009 [Member] |  |  |  |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Federal tax, subject to interest |  |  |  |  |  | 516 |  |  |
Internal Revenue Service (IRS) | Tax Years 2010 Through 2012 [Member] |  |  |  |  |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |
Federal tax, subject to interest |  |  |  |  |  | $ 549 |  |  |

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