CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME
Unrealized gains (losses) on derivatives, tax	$ (1)	$ 0	$ (1)	$ 3
Pension and postretirement gains, tax	(1)	(2)	(3)	(7)
Reclassification to income of realized losses on derivatives, tax	0	0	0	(5)
Other comprehensive income (loss) related to noncontrolling interests	$ 0	$ 0	$ 0	$ 0