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Derivatives (Tables)
6 Months Ended
Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Amounts related to cash flow hedges We recorded the following amounts in AOCL related to our cash flow hedges (in millions):
As of June 30, 2021As of December 31, 2020
Unrealized gains on unsettled contracts$(17.6)$(10.5)
Income tax expense 3.5 2.3 
Gains included in AOCL, net of tax (1)
$(14.1)$(8.2)
(1) Assuming commodity prices and foreign currency exchange rates remain constant, we expect to reclassify $12.8 million of derivative gains as of June 30, 2021 into earnings within the next 12 months.