Summary of the Activity in the Performance-Based Long-Term Incentive Program Since Inception (Parenthetical) (Detail) shares in Millions		12 Months Ended
May 11, 2020	Dec. 26, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reverse stock split	1-for-10	1-for-10
Reverse stock split ratio	0.1	0.1
Performance Based Stock Incentive Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reverse stock split	1-for-10
Reverse stock split ratio	0.1
Outstanding shares of awards granted that will be settled in cash		5.6

Share based compensation arrangement by share based payment award equity instruments other than options grants in period to be settled in cash.

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- 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.

+ References

No definition available.

+ Details

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770

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