Schedule of Fair Value of Assets and Liabilities (Detail) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 28, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Timber notes receivable		$ 819
Company-owned life insurance	$ 152	91
Recourse Debt \| New Facilities loans Under Third Amended Credit Agreement due 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	100
Non-Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value		735
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Timber notes receivable		819
Company-owned life insurance	152	91
Carrying Amount \| Recourse Debt \| New Facilities loans Under Third Amended Credit Agreement due 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	100
Carrying Amount \| Non-Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value		735
Term Loan, due 2022 \| Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value		409
Term Loan, due 2022 \| Carrying Amount \| Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value		393
Revenue bonds, due in varying amounts periodically through 2029 \| Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	176	186
Revenue bonds, due in varying amounts periodically through 2029 \| Carrying Amount \| Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	176	186
American & Foreign Power Company, Inc. 5% debentures, due 2030 \| Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	16	14
American & Foreign Power Company, Inc. 5% debentures, due 2030 \| Carrying Amount \| Recourse Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 15	$ 15

Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

No definition available.

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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.

+ References

No definition available.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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- Definition

Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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