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Earnings Per Share - Computations of Earnings (Loss) per Common Share (Detail) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jul. 01, 2023
Jun. 30, 2022
Jul. 01, 2023
Jun. 30, 2022
Earnings Per Share [Abstract]        
Income from continuing operations, net of tax $ 102.1 $ 144.3 $ 187.7 $ 270.5
Income from discontinued operations, net of tax 0.0 47.7 (1.0) 102.4
Net income $ 102.1 $ 192.0 $ 186.7 $ 372.9
Continuing operations $ 0.81 $ 1.11 $ 1.47 $ 2.05
Discontinued operations 0 0.36 0 0.78
Basic earnings per share 0.81 1.47 1.47 2.83
Continuing operations 0.80 1.10 1.47 2.03
Discontinued operations 0 0.36 (0.01) 0.77
Diluted earnings per share $ 0.80 $ 1.46 $ 1.46 $ 2.80
Basic average shares outstanding 126,800,000 130,300,000 127,300,000 131,900,000
Stock-based awards 700,000 900,000 700,000 1,100,000
Diluted average shares outstanding 127,500,000 131,200,000 128,000,000.0 133,000,000.0
Antidilutive stock-based awards excluded from weighted- average number of shares outstanding for diluted earnings per share 1.0 1.6 1.0 1.0