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Employee Benefit Plans - Before-Tax Amounts not Recognized in Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Other Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Unrecognized net actuarial loss (gain) $ 2 $ 3
Unrecognized prior service cost (credit) (21) (60)
U.S. | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Unrecognized net actuarial loss (gain) 112 123
Unrecognized prior service cost (credit) 0 0
Int’l. | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Unrecognized net actuarial loss (gain) 445 585
Unrecognized prior service cost (credit) $ 58 $ 1