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Employee Retirement Benefits - Schedule of Pension Plan Assets (Details) - Pension - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | $ 118 | $ 119 | $ 113
Level 1 | Cash |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 7 | 2 |
Level 2 | U.S. Large Cap |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 17 | 13 |
Level 2 | U.S. Mid Cap |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 1 | 2 |
Level 2 | International Developed |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 6 | 12 |
Level 2 | International Emerging Markets |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 3 | 2 |
Level 2 | U.S. Treasuries |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 40 | 23 |
Level 2 | Corporate Bonds |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 17 | 38 |
Level 2 | Government Bonds |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 1 | 7 |
Level 2 | Municipal Bonds |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 0 | 2 |
Level 2 | Mortgage-Backed Securities |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 8 | 1 |
Level 2 | Asset-Backed Securities |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 1 | 2 |
Level 2 | Bank Loans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 0 | 6 |
Level 2 | Preferreds |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 0 | 6 |
Level 2 | Other |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | 17 | 3 |
Level 2 | Total fair value of pension plan assets |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined benefit plan, plan assets, amount | $ 118 | $ 119 |

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