Pension and Postretirement Benefit Plans - Fair Value of Plan Assets (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 |
Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | $ 1,785 | $ 0 | $ 0 |
Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 471 | 367 | 9 |
Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 132 | 0 | $ 0 |
Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1,777 | 0 | |
Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 383 | 366 | |
Defined Benefit Plan, Assets Before Other Items | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 132 | 0 | |
Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 333 | 0 | |
Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3 | 2 | |
Cash and cash equivalents | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 25 | 0 | |
Equities | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 180 | 0 | |
Equities | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 53 | 54 | |
Equities | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 13 | 0 | |
Fixed income | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 736 | 0 | |
Fixed income | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 243 | 225 | |
Fixed income | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 55 | 0 | |
Absolute return | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 245 | 0 | |
Absolute return | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 36 | 38 | |
Absolute return | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 18 | 0 | |
Private equity | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 283 | 0 | |
Private equity | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 48 | 47 | |
Private equity | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 21 | 0 | |
Other items to reconcile to fair value of plan assets | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 8 | 0 | |
Other items to reconcile to fair value of plan assets | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 88 | 1 | |
Other items to reconcile to fair value of plan assets | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | | |
Level 1 | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 548 | 0 | |
Level 1 | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 14 | 15 | |
Level 1 | Defined Benefit Plan, Assets Before Other Items | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 41 | 0 | |
Level 1 | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 333 | 0 | |
Level 1 | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3 | 2 | |
Level 1 | Cash and cash equivalents | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 25 | 0 | |
Level 1 | Equities | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 180 | 0 | |
Level 1 | Equities | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 5 | 7 | |
Level 1 | Equities | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 13 | 0 | |
Level 1 | Fixed income | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 35 | 0 | |
Level 1 | Fixed income | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6 | 6 | |
Level 1 | Fixed income | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3 | 0 | |
Level 1 | Absolute return | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 1 | Absolute return | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 1 | Absolute return | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 1 | Private equity | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 1 | Private equity | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 1 | Private equity | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 701 | 0 | |
Level 2 | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 246 | 211 | |
Level 2 | Defined Benefit Plan, Assets Before Other Items | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 52 | 0 | |
Level 2 | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Cash and cash equivalents | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Equities | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Equities | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 29 | 23 | |
Level 2 | Equities | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Fixed income | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 701 | 0 | |
Level 2 | Fixed income | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 217 | 188 | |
Level 2 | Fixed income | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 52 | 0 | |
Level 2 | Absolute return | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Absolute return | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Absolute return | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Private equity | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Private equity | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 2 | Private equity | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 33 | 28 | |
Level 3 | Defined Benefit Plan, Assets Before Other Items | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Cash and cash equivalents | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Equities | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Equities | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Equities | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Fixed income | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Fixed income | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Fixed income | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Absolute return | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Absolute return | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 33 | 28 | |
Level 3 | Absolute return | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Private equity | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Private equity | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Level 3 | Private equity | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 528 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Defined Benefit Plan, Assets Before Other Items | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 90 | 112 | |
Fair Value Measured at Net Asset Value Per Share | Defined Benefit Plan, Assets Before Other Items | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 39 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Equities | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Equities | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 19 | 24 | |
Fair Value Measured at Net Asset Value Per Share | Equities | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Fixed income | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Fixed income | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 20 | 31 | |
Fair Value Measured at Net Asset Value Per Share | Fixed income | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Absolute return | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 245 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Absolute return | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3 | 10 | |
Fair Value Measured at Net Asset Value Per Share | Absolute return | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 18 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Private equity | Qualified and Non-qualified Pension Benefits | United States | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 283 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Private equity | Qualified and Non-qualified Pension Benefits | International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 48 | 47 | |
Fair Value Measured at Net Asset Value Per Share | Private equity | Postretirement Benefits | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | $ 21 | $ 0 | |