v3.25.0.1
Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accounting Policies [Abstract]      
Independent research and development $ 27 $ 35 $ 40
Assets Held-in-trust [Abstract]      
Assets held in rabbi trusts 233 220  
Deferred tax asset valuation allowance $ 26 $ 29  
Percent likliehood of unfavorable settlement of uncertain income tax benefit 50.00%    
Workers' Compensation Discount, Percent 4.58% 3.93%  
Workers' compensation benefit obligations on an undiscounted basis $ 780 $ 784  
Concentration Risk [Line Items]      
Loans Receivable, Net 44 41  
Receivable with Imputed Interest, Discount $ 7 $ 9  
Amortization threshold for actuarial gains (losses) 10.00%    
Titan Acquisition Holdings, L.P.      
Concentration Risk [Line Items]      
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners   10.00%  
Proceeds from Sale of Equity Method Investments   $ 63  
Maximum      
Concentration Risk [Line Items]      
Maturity period of cash equivalents 90 days    
Maximum | Capitalized software costs      
Concentration Risk [Line Items]      
Property, Plant and Equipment, Useful Life 10 years    
Minimum      
Concentration Risk [Line Items]      
Operating Cycle 1 year    
Minimum | Capitalized software costs      
Concentration Risk [Line Items]      
Property, Plant and Equipment, Useful Life 3 years