Inventories (Tables)

3 Months Ended

Mar. 31, 2012

Inventory, Net [Abstract]

Inventories

	At
	March 31,		December 31,
(In millions)	2012		2011
Raw materials and work in process	$	9,387	$	8,735
Finished goods		5,642		5,022
Unbilled shipments		640		485
		15,669		14,242
Less revaluation to LIFO		(457)		(450)
Total	$	15,212	$	13,792