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OTHER COMPREHENSIVE INCOME
 12 Months Ended
Dec. 31, 2024
Stockholders' Equity Note [Abstract]  
OTHER COMPREHENSIVE INCOME OTHER COMPREHENSIVE INCOME
Comprehensive income comprises two subsets: net earnings and other comprehensive income (OCI). The components of OCI are presented in the accompanying Consolidated Statements of Comprehensive Income and Consolidated Statements of Equity, net of applicable taxes.
Amounts in accumulated other comprehensive income (loss) (AOCI), net of tax, at December 31, are as follows:
in millions202420232022
Cash flow hedges$(17.7)$(19.4)$(21.0)
Pension and postretirement plans(109.7)(124.4)(133.7)
Total AOCI$(127.4)$(143.8)$(154.7)
Changes in AOCI, net of tax, for the three years ended December 31, 2024 are as follows:
in millionsCash Flow
Hedges		Pension and
Postretirement
Benefit Plans		Total
AOCI Balances at December 31, 2021$(22.5)$(130.2)$(152.7)
Other comprehensive income (loss) before reclassifications0.0 (6.5)(6.5)
Amounts reclassified from AOCI1.5 3.0 4.5 
Net OCI changes1.5 (3.5)(2.0)
AOCI Balances at December 31, 2022$(21.0)$(133.7)$(154.7)
Other comprehensive income (loss) before reclassifications0.0 4.2 4.2 
Amounts reclassified from AOCI1.6 5.1 6.7 
Net OCI changes1.6 9.3 10.9 
AOCI Balances at December 31, 2023$(19.4)$(124.4)$(143.8)
Other comprehensive income (loss) before reclassifications0.0 9.7 9.7 
Amounts reclassified from AOCI1.7 5.0 6.7 
Net OCI changes1.7 14.7 16.4 
AOCI Balances at December 31, 2024$(17.7)$(109.7)$(127.4)
Amounts reclassified from AOCI to earnings are as follows:
in millions202420232022
Amortization of Accumulated Cash Flow Hedge Losses
Interest expense$2.2 $2.1 $2.0 
Benefit from income taxes(0.5)(0.5)(0.5)
Total$1.7 $1.6 $1.5 
Amortization of Accumulated Benefit Plan Costs
Other nonoperating expense$6.8 $6.9 $4.0 
Benefit from income taxes(1.8)(1.8)(1.0)
Total$5.0 $5.1 $3.0 
Total reclassifications from AOCI to earnings$6.7 $6.7 $4.5