XML 109 R82.htm IDEA: XBRL DOCUMENT v3.22.4
Retirement Benefits - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 01, 2020
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]      
Estimated contributions   $ 9.6  
Discount percent   50.00%  
Defined contribution plan maximum annual contribution per employee percent 2.00%   2.00%
Private Equity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Unfunded commitments   $ 4.0  
Structured credit(h) (l)      
Defined Benefit Plan Disclosure [Line Items]      
Required notice   65 days  
Hedge fund of funds      
Defined Benefit Plan Disclosure [Line Items]      
Required notice   95 days  
U.S. Plans      
Defined Benefit Plan Disclosure [Line Items]      
Accumulated benefit obligation   $ 627.2 $ 839.5
Non-U.S. Plans      
Defined Benefit Plan Disclosure [Line Items]      
Accumulated benefit obligation   304.2 $ 448.2
Estimated contributions   8.1  
Nonqualified U.S. pension plan      
Defined Benefit Plan Disclosure [Line Items]      
Estimated contributions   $ 0.6  
UMWA Plans      
Defined Benefit Plan Disclosure [Line Items]      
Black lung health care cost trend rate   7.00% 5.80%
Black lung health care cost ultimate rate   5.00% 5.00%
UMWA Plans | Energy debt(k) (l)      
Defined Benefit Plan Disclosure [Line Items]      
Lockup provision   3 years  
Black Lung and Other Plans      
Defined Benefit Plan Disclosure [Line Items]      
Black lung health care cost ultimate rate   5.00%  
Canada Plan      
Defined Benefit Plan Disclosure [Line Items]      
Black lung health care cost trend rate   7.00%  
Black lung health care cost ultimate rate   5.00%  
Brazil Plan      
Defined Benefit Plan Disclosure [Line Items]      
Black lung health care cost trend rate   4.80%