DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivative instruments

We had the following notional amount of outstanding commodity contracts that were entered into to hedge forecasted purchases:

	June 30, 2017		December 31, 2016		June 30, 2016
	($ in millions)
Copper	$	42.8	$	35.8	$	38.7
Zinc	7.9		8.0		8.0
Lead	—		3.4		8.4
Natural gas	45.0		54.4		0.4

Summary of location and fair value of derivative instruments on condensed balance sheets

The following table summarizes the location and fair value of the derivative instruments on our condensed balance sheets. The table disaggregates our net derivative assets and liabilities into gross components on a contract-by-contract basis before giving effect to master netting arrangements:

	Asset Derivatives									Liability Derivatives
		Fair Value									Fair Value
	Balance Sheet Location	June 30, 2017			December 31, 2016			June 30, 2016		Balance Sheet Location	June 30, 2017			December 31, 2016			June 30, 2016
		($ in millions)									($ in millions)
Derivatives Designated as Hedging Instruments
Interest rate contracts	Other current assets	$	5.0		$	1.9		$	—	Current installments of long-term debt	$	0.1		$	0.1		$	—
Interest rate contracts	Other assets	4.6			7.7			—		Long-term debt	—			—			0.3
Interest rate contracts	Other assets	—			—			3.7		Other liabilities	24.9			28.5			6.2
Commodity contracts – gains	Other current assets	4.9			13.2			—		Accrued liabilities	(0.1		)	—			(1.8		)
Commodity contracts – losses	Other current assets	(0.9		)	(1.7		)	—		Accrued liabilities	2.3			—			4.9
		$	13.6		$	21.1		$	3.7		$	27.2		$	28.6		$	9.6
Derivatives Not Designated as Hedging Instruments
Foreign exchange contracts – gains	Other current assets	$	1.7		$	0.6		$	0.1	Accrued liabilities	$	—		$	(0.5	)	$	(0.7	)
Foreign exchange contracts – losses	Other current assets	(0.5		)	(0.5		)	—		Accrued liabilities	—			1.7			2.8
		$	1.2		$	0.1		$	0.1		$	—		$	1.2		$	2.1
Total derivatives(1)		$	14.8		$	21.2		$	3.8		$	27.2		$	29.8		$	11.7

(1) Does not include the impact of cash collateral received from or provided to counterparties.

Summary of effects of derivative instruments on condensed statements of income

The following table summarizes the effects of derivative instruments on our condensed statements of income:

		Amount of Gain (Loss)						Amount of Gain (Loss)
		Three Months Ended June 30,						Six Months Ended June 30,
	Location of Gain (Loss)	2017			2016			2017			2016
Derivatives – Cash Flow Hedges		($ in millions)
Recognized in other comprehensive income (loss) (effective portion):
Commodity contracts	———	$	(2.4	)	$	1.6		$	(7.4	)	$	2.7
Interest rate contracts	———	(1.3		)	(6.2		)	0.6			(6.2		)
		$	(3.7	)	$	(4.6	)	$	(6.8	)	$	(3.5	)
Reclassified from accumulated other comprehensive loss into income (effective portion):
Interest rate contracts	Interest expense	$	0.5		$	—		$	0.5		$	—
Commodity contracts	Cost of goods sold	1.8			(1.7		)	1.9			(5.4		)
		$	2.3		$	(1.7	)	$	2.4		$	(5.4	)
Derivatives – Fair Value Hedges
Interest rate contracts	Interest expense	$	0.8		$	1.2		$	2.0		$	1.9
Derivatives Not Designated as Hedging Instruments
Commodity contracts	Cost of goods sold	$	—		$	—		$	—		$	(0.4	)
Foreign exchange contracts	Selling and administration	5.0			(4.2		)	0.5			(7.3		)
		$	5.0		$	(4.2	)	$	0.5		$	(7.7	)