Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Inventory, Net [Abstract]

Schedule of Inventory

The following table summarizes our inventory for the periods presented:

Millions of dollars	June 30, 2012			December 31, 2011
Finished products	$	2,196		$	2,016
Raw materials and work in process	581			541
	2,777			2,557
Less: excess of FIFO cost over LIFO cost	(194		)	(203		)
Total inventories	$	2,583		$	2,354

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