Segment Reporting Segment Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 28, 2020	Mar. 30, 2019
Segment Reporting Information [Line Items]
Depreciation and amortization (excluding integration and restructuring expenses)	$ (243)	$ (234)
Integration and restructuring expenses	0	(27)
Deal costs	0	(8)
Unrealized gains/(losses) on commodity hedges	(143)	29
Impairment losses	(226)	(620)
Equity award compensation expense (excluding integration and restructuring expenses)	(33)	(9)
Operating income/(loss)	770	562
Interest expense	310	321
Other expense/(income)	(81)	(380)
Income/(loss) before income taxes	541	621
United States
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	1,209	1,139
International
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	245	238
Canada
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	55	121
General corporate expenses
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	$ (94)	$ (67)

Depreciation and amortization, excluding integration and restructuring expenses

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Equity award compensation expense (excluding integration and restructuring expenses)

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Integration and restructuring expenses

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Segment Adjusted EBITDA

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Unrealized Gain / (Loss) on Commodity Hedge Contracts

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The net result for the period of deducting operating expenses from operating revenues.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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