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Other Changes In Plan Assets and Benefit Obligations Recognized In Other Comprehensive Loss (Income) (Detail) - North America - USD ($)
$ in Millions
12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Accumulated other comprehensive loss (income) at beginning of year $ (21) $ 9 $ 35
Net loss (gain) (25) (30) (26)
Accumulated other comprehensive loss (income) at end of year (46) (21) 9
Other Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Accumulated other comprehensive loss (income) at beginning of year 1   (1)
Net loss (gain) $ (1) 1 $ 1
Accumulated other comprehensive loss (income) at end of year   $ 1