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BENEFIT PLANS - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) plan trust shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of executive defined benefit pension plans | plan | 3 |  |
Number of executive retirement programs | plan | 3 |  |
Accumulated benefit obligation | $ 730.8 | $ 765.9 |
Unrecognized actuarial losses and prior service cost related to our pension and other postretirement benefit plans, net of accumulated tax | 1.9 | 2.0 | $ 0.9
Unrecognized actuarial losses and prior service cost, accumulated tax | 0.4 | 0.5 | 0.2
Recognized actuarial loss (gain ) - mark to market | $ (20.2) | (32.2) |
Hedge funds, minimum number of days notice prior to redemption | 30 days |  |
Hedge funds, maximum number of days notice prior to redemption | 90 days |  |
Maximum portfolio invested in securities (as a percent) | 5.00% |  |
Maximum equity portfolio's market value invested in securities (as a percent) | 10.00% |  |
Cost recognized | $ 34.5 | 31.8 | 26.9
Accrued incentive compensations | $ 147.3 | $ 149.0 |
Number of employee benefit trusts for the purpose of satisfying obligations under Supplemental Retirement Plans | trust | 2 |  |
Number of supplemental retirement plans | plan | 2 |  |
Stock held by employee benefit trusts (in shares) | shares | 600,000 | 600,000 |
Amount held in employee benefit trusts | $ 5.9 | $ 5.9 |
Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discretionary match of participants' contributions, dependent on certain eligibility rules | 500.00% |  |
Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discretionary match of participants' contributions, dependent on certain eligibility rules | 600.00% |  |
Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employer contributions | $ 9.7 | 6.7 |
Recognized actuarial loss (gain ) - mark to market | $ (21.0) | (30.4) | (0.2)
Pension Benefits | U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan percentage of employees covered | 8.00% |  |
Employer contributions | $ 0.0 | 0.0 |
Pension Benefits | Non-U.S. Defined Benefit Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employer contributions |  | 2.8 |
Other Postretirement Benefit Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employer contributions | 1.5 | 1.5 |
Plan assets in excess of projected benefit obligation and accumulated benefit obligation, plan assets | 551.4 | 585.3 |
Plan assets in excess of projected benefit obligation and accumulated benefit obligation, projected benefit obligation | 552.6 | 588.4 |
Plan assets in excess of projected benefit obligation and accumulated benefit obligation, accumulated benefit obligation | 552.6 | 588.4 |
Recognized actuarial loss (gain ) - mark to market | 0.8 | (1.8) | 5.0
Other Postretirement Benefit Plans | U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plans with projected benefit obligations and accumulated benefits benefit obligations in excess of plan's respective assets, projected benefit obligation | 113.1 | 115.6 |
Plans with projected benefit obligations and accumulated benefits benefit obligations in excess of plan's respective assets, accumulated benefit obligation | $ 112.1 | 115.0 |
Approved target allocation (as a percent) | 80.00% |  |
Approved target allocation for return seeking assets (as a percent) | 20.00% |  |
Other Postretirement Benefit Plans | Non-U.S. Defined Benefit Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plans with projected benefit obligations and accumulated benefits benefit obligations in excess of plan's respective assets, projected benefit obligation | $ 66.1 | 62.4 |
Plans with projected benefit obligations and accumulated benefits benefit obligations in excess of plan's respective assets, fair value of plan assets | $ 49.1 | 53.1 |
Initial annual rate increase in the per capita cost of covered healthcare benefits | 5.00% |  |
Cost recognized | $ 15.7 | $ 13.4 | $ 13.9

X
- Definition The tax effect from the total of net (gain) loss, prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References No definition available. + Details
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