Debt (Tables)

12 Months Ended

Dec. 31, 2011

Debt [Abstract]

Debt Obligations

The Company's debt obligations were as follows:

	December 31,
(dollars in millions)	2011			2010
Senior notes:
Floating rate notes due June 2, 2014	$	250.0		$	–
6.375% notes due July 15, 2018		450.0			450.0
4.5% notes due June 1, 2021		250.0			–
7.0% notes due July 15, 2038		300.0			300.0
5.95% notes due June 1, 2041		250.0			–
Unamortized original issue discount		(3.8	)		(1.8	)
Convertible debentures:
2.5% notes due June 15, 2026		–			500.0
Unamortized discount		–			(6.9	)
Other debt		70.0			37.5
Obligations under capital leases		18.6			14.0
		1,584.8			1,292.8
Current maturities		(10.6	)		(519.9	)
Long-term maturities	$	1,574.2		$	772.9

Interest expensed and paid

Information on interest expensed and paid during the three years ended December 31, 2011 was as follows:

	Year Ended December 31
(dollars in millions)	2011		2010		2009
Interest expensed	$	92.4	$	82.2	$	92.4
Interest paid	$	102.8	$	73.0	$	82.0