DEBT (Tables)

12 Months Ended

Dec. 31, 2013

Debt Instruments [Abstract]

Schedule of long-term debt

	December 31,
	2013		2012
Notes payable:	($ in millions)
Variable-rate Go Zone bonds, due 2024 (1.42% and 1.72% at December 31, 2013 and 2012, respectively)	$	50.0	$	50.0
Variable-rate Recovery Zone bonds, due 2024-2035 (1.42% and 1.72% at December 31, 2013 and 2012, respectively)	103.0		103.0
Variable-rate Industrial development and environmental improvement obligations due 2025 (0.22% and 0.26% at December 31, 2013 and 2012, respectively)	2.9		2.9
5.5%, due 2022	200.0		200.0
6.5%, due 2013	—		11.4
6.75%, due 2016 (includes interest rate swaps of $6.1 million and $8.4 million in 2013 and 2012, respectively)	131.1		133.4
7.23%, SunBelt Notes due 2013-2017 (includes unamortized fair value premium of $0.8 million and $1.1 million and interest rate swaps of $1.2 million and $1.8 million in 2013 and 2012, respectively)	50.7		63.9
8.875%, due 2019 (includes unamortized discount of $0.8 million in 2013 and $0.9 million in 2012)	149.2		149.1
Capital lease obligations	4.1		—
Total debt	691.0		713.7
Amounts due within one year	12.6		23.6
Total long-term debt	$	678.4	$	690.1

Swap activity related to certain debt obligations

Underlying Debt Instrument	Swap Amount		Date of Swap	December 31, 2013
	($ in millions)			Olin Pays Floating Rate:
6.75%, due 2016	$	65.0	March 2010	3.5 - 4.5%	(a)
6.75%, due 2016	$	60.0	March 2010	3.5 - 4.5%	(a)
				Olin Receives Floating Rate:
6.75%, due 2016	$	65.0	October 2011	3.5 - 4.5%	(a)
6.75%, due 2016	$	60.0	October 2011	3.5 - 4.5%	(a)