Schedule of Debt (Detail) - USD ($) $ in Millions	Dec. 30, 2023		Dec. 31, 2022
Debt Instrument [Line Items]
Finance lease obligations	$ 9	[1]	$ 14
Other current maturities of long-term debt			2
Total	9		16
Finance lease obligations	21	[1]	24
Other financing obligations			1
Total	165		172
Revenue bonds, due in varying amounts periodically through 2029
Debt Instrument [Line Items]
Long term debt	75		75
Third Amended and Restated Credit Agreement
Debt Instrument [Line Items]
New Facilities loans under the Third Amended Credit Agreement, due 2025	53		57
American & Foreign Power Company, Inc. 5% debentures, due 2030
Debt Instrument [Line Items]
Long term debt	$ 16		$ 15

[1] Finance lease payments include $1 million related to options to extend lease terms that are reasonably certain of being exercised. There were no legally binding minimum lease payments for leases signed but not yet commenced.