XML 45 R35.htm IDEA: XBRL DOCUMENT v3.20.2
Postretirement and Other Benefits (Tables)
9 Months Ended
Sep. 30, 2020
Retirement Benefits [Abstract]  
Net Pension Benefit Costs
The components of net pension and OPEB benefit costs for U.S. employees and net pension benefit costs for French employees during the three or nine months ended September 30, 2020 and 2019 were as follows ($ in millions):
Three Months Ended September 30,
 U.S. Pension BenefitsFrench Pension Benefits
 2020201920202019
Service cost$— $— $0.3 $0.3 
Interest cost0.9 1.2 — 0.1 
Expected return on plan assets(1.2)(1.5)— (0.1)
Amortizations and other0.9 0.5 0.3 0.2 
Net periodic benefit cost$0.6 $0.2 $0.6 $0.5 
Nine Months Ended September 30,
 U.S. Pension BenefitsFrench Pension Benefits
 2020201920202019
Service cost$— $— $0.9 $0.8 
Interest cost2.8 3.5 0.1 0.3 
Expected return on plan assets(3.7)(4.4)— (0.1)
Amortizations and other2.5 1.5 0.7 0.6 
Net periodic benefit cost$1.6 $0.6 $1.7 $1.6