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Accumulated Other Comprehensive Loss
12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss
The following table presents the changes in the components of accumulated other comprehensive loss, net of tax:

($ in millions)(Losses) gains on derivativesChange in equity affiliate investment AOCIDefined benefit pension and other postretirement plansForeign currency translationTotal
Balance, December 31, 2018$(0.4)$0.4 $(40.4)$(113.8)$(154.2)
Other comprehensive income (loss) before reclassifications5.4 — (1.9)4.9 8.4 
Amounts reclassified out(5.8)— 2.0 — (3.8)
Other comprehensive (loss) income, net of tax(0.4)— 0.1 4.9 4.6 
Balance, December 31, 2019(0.8)0.4 (40.3)(108.9)(149.6)
Other comprehensive income (loss) before reclassifications2.8 0.2 (2.5)40.1 40.6 
Amounts reclassified out(3.9)— 2.3 — (1.6)
Other comprehensive (loss) income, net of tax(1.1)0.2 (0.2)40.1 39.0 
Balance, December 31, 2020$(1.9)$0.6 $(40.5)$(68.8)$(110.6)

A summary of the reclassifications out of accumulated other comprehensive loss is presented in the following table ($ in millions):

Detail of components20202019Location on Statement of Income
Gains (losses) on derivatives:
Foreign currency contracts$(0.2)$1.0 Net sales
Foreign currency contracts0.1 1.0 Cost of goods and services sold
Foreign currency contracts5.9 6.9 Other expense (income)
Forward treasury locks(0.4)(0.5)Interest expense
Total before tax5.4 8.4 
Tax (expense) benefit(1.5)(2.6)
Net of tax$3.9 $5.8 
Amortization of defined benefit pension and other postretirement plans:
Prior service credit0.6 0.6 (a)
Actuarial gains (losses)(0.1)0.2 (a)
Settlements(3.7)(3.5)(a)
Total before tax(3.2)(2.7)
Tax benefit (expense)0.9 0.7 
Net of tax$(2.3)$(2.0)
Total reclassifications for the period, net of tax$1.6 $3.8 

(a) These components are included in the computation of net periodic benefit cost. Please refer to Note 15, Benefit Plans, for additional details.