RETIREMENT BENEFIT PLANS - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected future employer contributions, current fiscal year	$ 25
Actual contribution to defined benefit pension plans	$ 17
US Pension Plan \| Pension benefits \| US
Defined Benefit Plan Disclosure [Line Items]
Funded status of plan		$ 8
UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, benefit obligation		98
UK Pension Plan \| Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount		50
UK Pension Plan \| Pension benefits \| Non-US
Defined Benefit Plan Disclosure [Line Items]
Funded status of plan		20
Defined benefit plan, plan assets, amount		$ 118
Plan assets, target allocation, percentage	17.00%	83.00%

Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of contributions received and expected to be received by defined benefit plan from employer in current fiscal year.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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