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Schedule of Fair Value of Assets and Liabilities (Detail) - USD ($)
$ in Millions
Sep. 29, 2018
Dec. 30, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Timber notes receivable $ 840 $ 865
Company-owned life insurance 90 90
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Timber notes receivable 847 863
Company-owned life insurance 90 90
Recourse Debt | Term Loan, due 2022    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 713 754
Recourse Debt | Term Loan, due 2022 | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 665 717
Recourse Debt | Revenue bonds, due in varying amounts periodically through 2029    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 185 185
Recourse Debt | Revenue bonds, due in varying amounts periodically through 2029 | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 186 186
Recourse Debt | American & Foreign Power Company, Inc. 5% debentures, due 2030    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 14 14
Recourse Debt | American & Foreign Power Company, Inc. 5% debentures, due 2030 | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 14 14
Non-Recourse Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 755 777
Non-Recourse Debt | Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value $ 759 $ 776