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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Schedule of Components of Accumulated Other Comprehensive Loss
Components of Accumulated other comprehensive income (loss), net of tax, were as follows (in millions):
December 31,
20232022
Accumulated pension and OPEB liability adjustments, net of income tax benefit of $4.3 million and $2.5 million at December 31, 2023 and 2022, respectively
$(20.3)$(10.9)
Accumulated unrealized gain on derivative instruments, net of income tax expense of $12.8 million and $12.9 million at December 31, 2023 and 2022, respectively
27.9 44.4 
Accumulated unrealized foreign currency translation adjustments, net of income tax benefit of $14.6 million and $17.0 million at December 31, 2023 and 2022, respectively
31.5 (128.9)
Accumulated other comprehensive income (loss), net of tax
$39.1 $(95.4)
Schedule of Changes in the Components of Accumulated Other Comprehensive Loss
Changes in the components of Accumulated other comprehensive income (loss), net of tax, were as follows (in millions):
Years Ended December 31,
202320222021
Pre-taxTaxNet of
Tax
Pre-taxTaxNet of
Tax
Pre-taxTaxNet of
Tax
Pension and OPEB liability adjustments$(11.2)$1.8 $(9.4)$9.9 $(6.4)$3.5 $8.9 $(2.8)$6.1 
Derivative instrument adjustments(16.6)0.1 (16.5)61.3 (15.0)46.3 11.9 (0.7)11.2 
Foreign currency translation adjustments
35.4 0.1 35.5 (33.7)7.5 (26.2)(23.8)(0.6)(24.4)
Reclassification of foreign currency translation to income
127.4 (2.5)124.9 — — — — — — 
Total$135.0 $(0.5)$134.5 $37.5 $(13.9)$23.6 $(3.0)$(4.1)$(7.1)