v3.24.0.1
Benefit Plans: (Estimated Future Benefit Payments From Pension Plans) (Details) - Pension Plan
$ in Millions
Dec. 31, 2023
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2024 $ 417
2025 430
2026 428
2027 438
2028 457
2029 - 2033 $ 2,490