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Pension Plans - Schedule of Defined Benefit Pension Plans and Postretirement Benefit Plans (Details) - Pension Plan - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 03, 2022
Jul. 04, 2021
Jul. 03, 2022
Jul. 04, 2021
Components of net period pension benefit expense        
Service cost — benefits earned during the period $ 2.1 $ 2.7 $ 4.3 $ 5.4
Pension non-service income        
Interest cost on benefit obligation 5.9 5.6 11.8 11.2
Expected return on plan assets (14.1) (14.2) (28.1) (28.5)
Amortization of net prior service cost (0.4) (0.9) (0.9) (1.7)
Amortization of net actuarial loss 5.7 6.6 11.5 13.3
Pension non-service income $ (2.9) $ (2.9) $ (5.7) $ (5.7)