Inventories (Tables)

6 Months Ended

Jun. 30, 2011

Inventories [Abstract]

Inventories

	June 30,			December 31,
	2011			2010
	(Dollars in millions)
Average or actual cost (which approximates current costs):
Finished products	$	223.3		$	224.4
In-process		2,123.5			1,866.1
Raw materials and supplies		760.7			692.8
		3,107.5			2,783.3
Less:
Reserve to reduce certain inventories to LIFO basis		(53.7	)		(52.7	)
Progress payments and advances		(366.5	)		(281.2	)
Total	$	2,687.3		$	2,449.4