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Calculation of Earnings (Loss) Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 25, 2021
Jun. 26, 2021
Mar. 27, 2021
Sep. 26, 2020
Jun. 27, 2020
Mar. 28, 2020
Sep. 25, 2021
Sep. 26, 2020
Basic earnings (loss) per share                
Net income (loss) from continuing operations $ 73     $ 34     $ 155 $ (94)
Discontinued operations, net of tax 28     23     (89) (243)
Net income (loss) $ 101 $ (88) $ 53 $ 57 $ (439) $ 45 $ 66 $ (337)
Weighted-average shares outstanding 53     53     54 53
Continuing operations $ 1.38     $ 0.64     $ 2.89 $ (1.78)
Discontinued operations 0.54     0.43     (1.65) (4.62)
Net basic earnings (loss) per share $ 1.92     $ 1.07     $ 1.24 $ (6.40)
Diluted earnings (loss) per share                
Net income (loss) from continuing operations $ 73     $ 34     $ 155 $ (94)
Discontinued operations, net of tax 28     23     (89) (243)
Net income (loss) $ 101 $ (88) $ 53 $ 57 $ (439) $ 45 $ 66 $ (337)
Weighted-average shares outstanding 53     53     54 53
Stock options and restricted stock 2     1     2  
Diluted weighted-average shares outstanding 55     54     56 53
Continuing operations $ 1.33     $ 0.63     $ 2.79 $ (1.78)
Discontinued operations 0.52     0.41     (1.60) (4.62)
Net diluted earnings (loss) per share $ 1.85     $ 1.04     $ 1.19 $ (6.40)