FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Table of financial instruments measured at fair value

The following table summarizes the assets and liabilities measured at fair value in the condensed balance sheets:

	Fair Value Measurements
Balance at March 31, 2021	Level 1		Level 2		Level 3		Total
Assets	($ in millions)
Commodity contracts	$	—	$	38.1	$	—	$	38.1
Foreign exchange contracts	—		0.4		—		0.4
Total Assets	$	—	$	38.5	$	—	$	38.5
Liabilities
Commodity contracts	$	—	$	0.5	$	—	$	0.5
Foreign exchange contracts	—		2.7		—		2.7
Total Liabilities	$	—	$	3.2	$	—	$	3.2
Balance at December 31, 2020
Assets
Commodity contracts	$	—	$	29.1	$	—	$	29.1
Foreign exchange contracts	—		2.3		—		2.3
Total Assets	$	—	$	31.4	$	—	$	31.4
Liabilities
Commodity contracts	$	—	$	0.7	$	—	$	0.7
Total Liabilities	$	—	$	0.7	$	—	$	0.7
Balance at March 31, 2020
Assets
Commodity contracts	$	—	$	0.1	$	—	$	0.1
Foreign exchange contracts	—		3.2		—		3.2
Total Assets	$	—	$	3.3	$	—	$	3.3
Liabilities
Commodity contracts	$	—	$	41.2	$	—	$	41.2
Foreign exchange contracts	—		3.3		—		3.3
Total Liabilities	$	—	$	44.5	$	—	$	44.5