Schedule of Quarterly Financial Data (Parenthetical) (Detail) $ in Millions		3 Months Ended	12 Months Ended
May 11, 2020	Dec. 25, 2021 USD ($)	Sep. 25, 2021 USD ($)	Jun. 26, 2021 USD ($)	Mar. 27, 2021 USD ($)	Dec. 26, 2020 USD ($)	Sep. 26, 2020 USD ($)	Jun. 27, 2020 USD ($)	Mar. 28, 2020 USD ($)	Dec. 25, 2021 USD ($)	Dec. 26, 2020 USD ($)	Dec. 28, 2019 USD ($)
Quarterly Financial Information Disclosure [Abstract]
Merger, restructuring and other operating expenses, net		$ 14	$ 13	$ 11	$ 13	$ 13	$ 24	$ 53	$ 12	$ 51	$ 102	$ 86
Asset impairments		$ 2	$ 5	$ 1	$ 12	$ 8	$ 10	$ 153	$ 12	$ 20	$ 182	$ 56
Reverse stock split	1-for-10										1-for-10
Reverse stock split ratio	0.1										0.1

Merger, restructuring and other operating income expenses, net.

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

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-Publisher FASB
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Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

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