STATEMENT OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Millions	5 Months Ended	7 Months Ended	12 Months Ended
Dec. 31, 2023	Aug. 11, 2023	Dec. 31, 2025	Dec. 31, 2024
Translation adjustment and foreign currency hedges, tax	$ 0.0	$ 0.0	$ (19.0)	$ 12.7
Prior service credit (cost) recognized during the year, tax	(0.2)	0.2	(0.1)	(0.7)
Net actuarial gains (loss) recognized during the year, tax	2.6	(3.8)	(2.6)	2.5
Net actuarial (gains) losses recognized due to settlement, tax	0.0	1.1	0.5	(3.2)
Currency impact, tax	0.1	(1.3)	(0.1)	0.3
Foreign currency hedges
Foreign and interest rate hedges, tax	0.0	0.0	0.0	0.0
Interest rate hedges
Foreign and interest rate hedges, tax	$ 0.0	$ 0.0	$ 0.0	$ (0.1)

Other Comprehensive (Income) Loss, Currency Impact, Tax

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Amount of tax expense (benefit) for increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.

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Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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- Definition

Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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