CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
CONSOLIDATED CONDENSED BALANCE SHEETS
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 36,612	$ 34,785
Common stock, outstanding shares	891,312,915	890,557,537
Treasury stock, shares	127,577,044	119,951,199