XML 113 R101.htm IDEA: XBRL DOCUMENT v3.22.2.2
Employee plans - Components of Net Periodic Benefit Expense (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Oct. 14, 2021
Jan. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]            
Settlement loss $ 130.1          
Pension Plans            
Defined Benefit Plan Disclosure [Line Items]            
Settlement loss       $ 499.4    
Pension Plans | U.S. Plans            
Defined Benefit Plan Disclosure [Line Items]            
Service cost       0.0 $ 0.0 $ 0.0
Interest cost       117.6 162.5 197.5
Expected return on plan assets       (199.8) (208.6) (218.2)
Amortization of prior service credit       (2.5) (2.5) (2.5)
Recognized net actuarial loss       135.6 135.5 116.6
Curtailment gain       0.0 0.0 0.0
Settlement loss   $ 158.0 $ 142.1 288.1 142.1 0.0
Net periodic pension/benefit cost (income)       339.0 229.0 93.4
Pension Plans | International Plans            
Defined Benefit Plan Disclosure [Line Items]            
Service cost       3.0 2.8 2.8
Interest cost       36.7 53.4 68.3
Expected return on plan assets       (81.6) (90.6) (104.6)
Amortization of prior service credit       (2.8) (2.5) (2.5)
Recognized net actuarial loss       48.3 43.2 34.2
Curtailment gain       0.0 0.0 (0.1)
Settlement loss       211.3 0.0 1.2
Net periodic pension/benefit cost (income)       214.9 6.3 (0.7)
Other Postretirement Benefit Plans            
Defined Benefit Plan Disclosure [Line Items]            
Service cost       0.4 0.5 0.5
Interest cost       1.8 4.4 4.8
Expected return on plan assets       (0.3) (0.4) (0.4)
Amortization of prior service credit       (1.7) (1.6) (1.7)
Recognized net actuarial loss       (2.1) 1.0 0.7
Net periodic pension/benefit cost (income)       $ (1.9) $ 3.9 $ 3.9