FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2016

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 September 30, 2016	Level 1		Level 2		Level 3		Total
Assets	($ in millions)
Interest rate swaps	$	—	$	2.5	$	—	$	2.5
Commodity contracts	—		0.9		—		0.9
Foreign exchange contracts	—		—		—		—
Liabilities
Interest rate swaps	$	—	$	2.5	$	—	$	2.5
Commodity contracts	—		3.9		—		3.9
Foreign exchange contracts	—		0.8		—		0.8
Balance at December 31, 2015
Assets
Interest rate swaps	$	—	$	1.1	$	—	$	1.1
Foreign exchange contracts	—		0.1		—		0.1
Liabilities
Interest rate swaps	$	—	$	1.6	$	—	$	1.6
Commodity contracts	—		11.6		—		11.6
Balance at September 30, 2015
Assets
Interest rate swaps	$	—	$	1.7	$	—	$	1.7
Liabilities
Interest rate swaps	$	—	$	2.4	$	—	$	2.4
Commodity contracts	—		11.8		—		11.8

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 September 30, 2016	$	—	$	3,732.7	$	153.0	$	3,885.7	$	3,677.8
Balance at December 31, 2015	—		3,826.9		153.0		3,979.9		3,848.8
Balance at September 30, 2015	—		500.0		153.0		653.0		662.3