XML 86 R66.htm IDEA: XBRL DOCUMENT v3.22.4
Employee Benefits - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
trust
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
Defined Benefit Plan Disclosure [Line Items]      
Total cost for retirement plans $ 124.0 $ 93.0 $ 91.0
Defined contribution plan cost 88.0 86.0 80.0
Pension trust assets $ 1,464.0 2,231.0  
U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Number of pension trust accounts | trust 1    
Pension trust assets $ 1,185.0 $ 1,600.0  
Stock purchased by US plan under defined contribution plan (shares) | shares 67,248 107,651  
Stock sold by US plan under defined contribution plan (shares) | shares 60,473 160,415  
Stock held by the US plan under defined contribution plan (shares) | shares 1,200,000 1,200,000  
Market value of stock held by the US plan under defined contribution plan $ 402.0 $ 567.0  
S&P Global Inc. dividends received $ 4.0 3.8  
U.S. | Fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 90.00%    
U.S. | Domestic equities      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 5.00%    
U.S. | International equities      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 3.00%    
U.S. | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 2.00%    
U.K.      
Defined Benefit Plan Disclosure [Line Items]      
Number of pension trust accounts | trust 1    
Pension trust assets $ 279.0 631.0  
U.K. | Fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 39.00%    
U.K. | Diversified growth funds      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 5.00%    
U.K. | Infrastructure      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 29.00%    
U.K. | Equities      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 14.00%    
U.K. | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations 13.00%    
Retirement Plans      
Defined Benefit Plan Disclosure [Line Items]      
Other components of net periodic benefit cost $ (8.0) (36.0) (26.0)
Expected required employer contribution $ 10.0    
Number of pension trust accounts | trust 2    
Pension trust assets $ 1,464.0 2,231.0 2,243.0
Retirement Plans | U.K.      
Defined Benefit Plan Disclosure [Line Items]      
Other components of net periodic benefit cost (6.0) (22.0) (17.0)
Postretirement Plans      
Defined Benefit Plan Disclosure [Line Items]      
Other components of net periodic benefit cost (3.0) (2.0) (2.0)
Expected required employer contribution 3.0    
Pension trust assets $ 5.0 $ 6.0 $ 9.0