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Pensions and Other Postretirement Benefits (Tables)
6 Months Ended
Jun. 30, 2022
Retirement Benefits [Abstract]  
Components of net annual benefit cost (income) The following table summarizes the components of net annual benefit cost (income):
(in Millions)Three Months Ended June 30,Six Months Ended June 30,
PensionsOther BenefitsPensionsOther Benefits
20222021202220212022202120222021
Service cost$1.2 $1.3 $— $— $2.3 $2.6 $— $— 
Interest cost7.2 6.1 0.1 — 14.5 12.2 0.2 0.1 
Expected return on plan assets(7.7)(7.0)— — (15.5)(14.1)— — 
Amortization of prior service cost (credit)0.1 — — — 0.1 0.1 — — 
Recognized net actuarial and other (gain) loss4.5 5.9 (0.2)(0.2)9.0 11.8 (0.4)(0.4)
Recognized loss due to settlement (1)
— — — — 0.4 — — — 
Net periodic benefit cost (income)$5.3 $6.3 $(0.1)$(0.2)$10.8 $12.6 $(0.2)$(0.3)