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Accounting for Derivative Instruments and Hedging Activities (Tables)
9 Months Ended
Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule Of Derivative Instruments Notional Amounts As of September 30, 2021 and December 31, 2020, the following is the total absolute notional volume associated with our outstanding derivative instruments:
(in millions of Units)September 30, 2021December 31, 2020
Derivative InstrumentDerivative CategoryUnit of Measure
Foreign currency derivativesForeign currencyUS Dollars2,974.6 2,912.3 
Natural gas derivativesCommodityMMbtu26.927.3