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Derivative Instruments and Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 27, 2020 | Dec. 28, 2019
Derivative [Line Items] |  |
Net deferred losses reported in AOCI to be reclassified into income in the next twelve months | $ (16) |
Concentration of risk, derivative instruments assets | 86 |
Collateral posted | 0 |
Derivative, Collateral, Obligation to Return Cash | 32 | $ 7
Other current liabilities |  |
Derivative [Line Items] |  |
Derivative, Collateral, Obligation to Return Cash | 58 |
Accounts Receivable, Net | Exchange-traded commodity |  |
Derivative [Line Items] |  |
Margin deposits | $ 28 |
Five Largest Accounts | Customer Concentration Risk | Accounts Receivable, Net |  |
Derivative [Line Items] |  |
Concentration percentage | 24.00% |

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