Income Taxes - Movement in Deferred Tax Valuation Allowance (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 26, 2020 |
Dec. 28, 2019 |
Dec. 29, 2018 |
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| Valuation Allowance [Line Items] | |||
| Beginning balance | $ 2,867 | $ 2,443 | $ 2,621 |
| Ending balance | 1,576 | 2,867 | 2,443 |
| Charged (reductions) to expense/other accounts | |||
| Valuation Allowance [Line Items] | |||
| Increase (decrease) in valuation allowance | (1,301) | (61) | (59) |
| Net (deductions) recoveries | |||
| Valuation Allowance [Line Items] | |||
| Increase (decrease) in valuation allowance | $ 10 | $ 485 | $ (119) |
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. No definition available.
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