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Pension Benefits (Details) - UNITED STATES - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 1 $ 1 $ 2 $ 2
Interest cost 11 10 22 21
Expected return on plan assets (14) (13) (27) (26)
Amortization of net loss 1 1 1 1
Amortization of prior service cost 1 1 1 1
Net periodic benefit cost 0 0 (1) (1)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement [1] $ 0 $ 0 $ 1 $ 0
[1] Loss is a result of settlement transactions which exceeded the sum of annual service and interest costs for the applicable plan. This loss was recorded in Other pension (income) expense