FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2020

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, 2020	Level 1		Level 2		Level 3		Total
Assets	($ in millions)
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
Balance at December 31, 2019
Assets
Commodity contracts	$	—	$	2.0	$	—	$	2.0
Foreign exchange contracts	—		0.6		—		0.6
Total assets	$	—	$	2.6	$	—	$	2.6
Liabilities
Commodity contracts	$	—	$	19.6	$	—	$	19.6
Foreign exchange contracts	—		1.2		—		1.2
Total liabilities	$	—	$	20.8	$	—	$	20.8
Balance at March 31, 2019
Assets
Interest rate swaps	$	—	$	3.6	$	—	$	3.6
Commodity contracts	—		4.7		—		4.7
Foreign exchange contracts	—		0.3		—		0.3
Total assets	$	—	$	8.6	$	—	$	8.6
Liabilities
Interest rate swaps	$	—	$	23.5	$	—	$	23.5
Commodity contracts	—		10.1		—		10.1
Foreign exchange contracts	—		0.2		—		0.2
Total liabilities	$	—	$	33.8	$	—	$	33.8

Fair value of debt table

The following table summarizes the fair value measurements of debt and the actual debt recorded on our condensed balance sheets:

	Fair Value Measurements								Amount recorded on balance sheets
	Level 1		Level 2		Level 3		Total
	($ in millions)
Balance at March 31, 2020	$	—	$	3,167.3	$	153.0	$	3,320.3	$	3,491.5
Balance at December 31, 2019	—		3,417.5		153.0		3,570.5		3,340.8
Balance at March 31, 2019	—		3,221.9		153.0		3,374.9		3,193.3