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- Definition

Defined Benefit Plan, Plan Costs

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Defined benefit plan term of contract.

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Defined benefit plan terminated effective date.

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- Definition

Investment gains on plan assets

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- Definition

Investment Losses On Plan Assets

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- Definition

Pension cost and other postretirement benefits cost plan gain on annuitization.

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Pension Cost and Other Postretirement Benefits Cost (Reversal of Cost), Remeasurement

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- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Amount of (increase) decrease to benefit obligation of defined benefit plan from remeasurement due to settlement. Excludes decrease to benefit obligation for settlement payment.

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- Definition

Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement.

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

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Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

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Amount of (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of cost for defined contribution plan.

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Amount of increase (decrease) in obligation for pension benefits. Includes, but is not limited to, defined benefit or defined contribution plans. Excludes other postretirement benefits.

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Retirement and Postretirement Plans - Narrative (Details) - USD ($) $ in Millions			1 Months Ended		3 Months Ended			12 Months Ended
	May 01, 2024	Jul. 07, 2022	Jan. 31, 2025	Oct. 29, 2021	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Bargaining Plan's obligations	$ 20.8
Defined contribution plan cost								$ 3.1	$ 3.4	$ 3.3
Loss (gain) from remeasurement of benefit plans					$ 1.0	$ 0.8		10.3	40.6	(35.4)
Investment losses on plan assets					1.8			35.0	4.0
Investment gains on plan assets					0.7
Gain on plan asset annuitization					$ 0.1
Salaried Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Non cash gain (loss)								$ (1.0)
Benefit plan terminated effective date								Mar. 31, 2022
Bargaining Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan term of contract				4 years
Defined benefit plan contract expiration date				Sep. 27, 2025
Increased in pension liability											$ 14.2
Bargaining Plan's obligations		$ 256.2						$ 65.0
Settlement gain							$ 2.7
Company contributions to plans								42.8
Accumulated benefit obligation for plans which the accumulated benefit obligation exceeded the fair value of plan assets								467.1
Bargaining Plan \| Subsequent Event
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contributions to plans			$ 5.3
Postretirement
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Settlement gain								0.1	(1.9)	11.8
Non cash gain (loss)								0.2	(3.8)
Expected contributions and payments from 2026 through 2034								32.4
Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Settlement gain								(10.4)	(38.7)	20.9
Retirement plan expenses								3.3	2.9
Defined benefit plan settlement								118.2	6.0
Non cash gain (loss)								24.6	(32.8)
Accumulated benefit obligation								532.5	683.7
Expected contributions and payments from 2026 through 2034								217.9
Pension \| Salaried Plan \| United States of America
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Settlement gain								(1.8)	(4.0)	$ (6.9)
Defined benefit plan settlement								118.2	6.0
Defined benefit plan annuitization settlement								121.0
Non cash gain (loss)								1.5	$ (5.7)
Expected contributions and payments from 2026 through 2034								0.0
Supplemental Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated benefit obligation for plans which the accumulated benefit obligation exceeded the fair value of plan assets								16.1
Pension and Postretirement Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected contributions and payments in next 12 months								68.5
Expected contributions and payments from 2026 through 2034								$ 103.3