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Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE INSTRUMENTS - Schedule Of Derivatives Not Designated As Hedging Instruments (Details)

v3.20.2
DERIVATIVE INSTRUMENTS - Schedule Of Derivatives Not Designated As Hedging Instruments (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items] Ìý Ìý Ìý Ìý
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net $ 41.3 $ 74.8 $ 8.5 $ 80.3
Customer Supply Agreement [Member] | Revenue from Contract with Customer Benchmark [Member] Ìý Ìý Ìý Ìý
Derivative Instruments, Gain (Loss) [Line Items] Ìý Ìý Ìý Ìý
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net 31.2 57.5 5.6 74.6
Provisional Pricing Arrangements [Member] | Revenue from Contract with Customer Benchmark [Member] Ìý Ìý Ìý Ìý
Derivative Instruments, Gain (Loss) [Line Items] Ìý Ìý Ìý Ìý
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net 8.8 17.3 7.6 5.7
Foreign Exchange Contract [Member] | Other Nonoperating Income (Expense) [Member] Ìý Ìý Ìý Ìý
Derivative Instruments, Gain (Loss) [Line Items] Ìý Ìý Ìý Ìý
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net 0.1 0.0 0.0 0.0
Commodity Contract [Member] | Cost of Sales [Member] Ìý Ìý Ìý Ìý
Derivative Instruments, Gain (Loss) [Line Items] Ìý Ìý Ìý Ìý
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net $ 1.2 $ 0.0 $ (4.7) $ 0.0