Inventories (Tables)

9 Months Ended

Sep. 30, 2011

Inventories [Abstract]

Inventories

	September 30,			December 31,
	2011			2010
	(Dollars in millions)
Average or actual cost (which approximates current costs):
Finished products	$	230.2		$	224.4
In-process		2,268.1			1,866.1
Raw materials and supplies		761.4			692.8
		3,259.7			2,783.3
Less:
Reserve to reduce certain inventories to LIFO basis		(54.1	)		(52.7	)
Progress payments and advances		(413.8	)		(281.2	)
Total	$	2,791.8		$	2,449.4