Summary of Valuation Allowances (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
Income Taxes [Line Items]
Beginning balance	$ 266
Ending balance	244	$ 266
Valuation Allowance of Deferred Tax Assets
Income Taxes [Line Items]
Beginning balance	266	93	$ 99
Additions, charged to expense		184
Reductions	(22)	(11)	(6)
Ending balance	$ 244	$ 266	$ 93

Income taxes.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

+ Details

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- Definition

Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09(Column C)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4

+ Details

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- Definition

Amount of decrease in valuation and qualifying accounts and reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09(Column D))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4

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