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v3.25.4

Pension and Other Postretirement Healthcare Benefits - Narrative (Details) £ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 GBP (£) plan | Dec. 31, 2025 USD ($) plan | Dec. 31, 2024 USD ($) | Dec. 31, 2026 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Number of plans | plan | 1 | 1 |  |
Defined benefit plan, plan assets, increase (decrease) for assets transferred to (from) plan | £ 30 | $ 40 |  |
Pensions |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Employer contributions |  | $ 4 |  |
Pensions | Forecast |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Contributions expected in the next year |  |  |  | $ 10
Pensions | Retirement Plan Name, Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Required employer contribution percentage | 19.80% | 19.80% |  |
Pensions | International |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Employer contributions |  | $ 3 | $ 5 |
Other Post Retirement Benefit Plans | International |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Employer contributions |  | $ 1 | $ 1 |
Other Post Retirement Benefit Plans | South Africa |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Percentage of post-retirement and death-in-service benefits for members employed before March 1, 1994 | 100.00% | 100.00% |  |
Annual percentage of post-retirement and death-in-service benefits for members employed on or after March 1, 1994 but before January 1, 2002 | 2.00% | 2.00% |  |
Percentage of post-retirement and death-in-service benefits for members employed on or after January 1, 2002 | 0.00% | 0.00% |  |
Other Post Retirement Benefit Plans | South Africa | Maximum |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Percentage of post-retirement and death-in-service benefits for members employed on or after March 1, 1994 but before January 1, 2002 | 50.00% | 50.00% |  |

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