v3.25.0.1
Employee Pension and Other Postretirement Benefits Schedule of Allocation Plan Asset (Table) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 7,024 $ 6,873
Fair Value, Inputs, Level 1, Level 2, and Level 3    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 3,787 3,643
Fair Value, Inputs, Level 1, Level 2, and Level 3 | U.S. and international equities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 1,499 1,723
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Government and agency debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 777 448
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Corporate and other debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 1,487 1,469
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Group annuity contract    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 3 3
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Cash and cash equivalents    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 21  
Level 1    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 1,520 1,723
Level 1 | U.S. and international equities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 1,499 1,723
Level 1 | Cash and cash equivalents    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 21  
Level 2    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 2,267 1,920
Level 2 | Government and agency debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 777 448
Level 2 | Corporate and other debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 1,487 1,469
Level 2 | Group annuity contract    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 3 3
Fair Value Measured at Net Asset Value Per Share    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 3,237 3,230
Fair Value Measured at Net Asset Value Per Share | U.S. and international equities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets [1] 1,199 1,134
Fair Value Measured at Net Asset Value Per Share | Corporate and other debt securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 242 234
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets [2] 126 114
Fair Value Measured at Net Asset Value Per Share | Real Estate Investments    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 469 532
Fair Value Measured at Net Asset Value Per Share | Partnership [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 926 828
Fair Value Measured at Net Asset Value Per Share | Hedge funds    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 275 $ 388
Minimum | United States and International Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 30.00%  
Minimum | Fixed Income Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 25.00%  
Minimum | Alternative Investments [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 10.00%  
Maximum | United States and International Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 55.00%  
Maximum | Fixed Income Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 45.00%  
Maximum | Alternative Investments [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 35.00%  
[1] U.S. and international equity securities include investments in small, medium, and large capitalization stocks of public companies held in commingled trust funds.
[2] Cash and cash equivalents are liquid short-term investment funds and include net receivables and payables of the trust. These funds are available for immediate use to fund daily operations, execute investment policies, and serve as a temporary investment vehicle.