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Employee Benefit Plans - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
United States        
Defined Benefit Plan Disclosure [Line Items]        
Defined benefit plan, plan assets, contributions by employer     $ 68  
Defined benefit plan, expected future employer contributions, current fiscal year $ 95   95  
United States | Pension Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Settlements 9 $ 28 31 $ 72
Increase (decrease) in net pension liability 23      
Int'l.        
Defined Benefit Plan Disclosure [Line Items]        
Defined benefit plan, plan assets, contributions by employer     93  
Defined benefit plan, expected future employer contributions, current fiscal year 100   100  
Int'l. | Pension Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Settlements $ 0 $ 0 $ 0 $ 0