XML 131 R13.htm IDEA: XBRL DOCUMENT

Inventories	12 Months Ended
Inventories	Dec. 31, 2012
Inventory, Net [Abstract]
Inventories	Inventories The cost of approximately 68% and 70% of inventories at December 31, 2012 and 2011, respectively, was determined using the LIFO method. The stated LIFO amounts of inventories were approximately $0.6 billion lower than the current cost of inventories at December 31, 2012 and 2011.

The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

+ References+ Details