XML 77 R67.htm IDEA: XBRL DOCUMENT v3.24.3
Employee Retirement Benefits - Components of Net Periodic Costs for Qualified and Supplemental Pension Plans (Details) - Qualified Pension Plans - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Defined Benefit Plan Disclosure        
Service cost $ 1 $ 1 $ 4 $ 4
Interest cost 4 3 10 9
Expected return on plan assets (5) (5) (16) (15)
Amortization of actuarial loss (gain) and prior service cost 0 0 1 (2)
Other 0 0 0 (5)
Total non-service benefit (1) (2) (5) (13)
Net periodic benefit cost $ 0 $ (1) $ (1) $ (9)