CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME
Unrealized losses on derivatives, tax				$ 3,000,000
Pension and postretirement gains, tax	$ (1,000,000)	$ (3,000,000)	$ (2,000,000)	(5,000,000)
Reclassification to income of realized losses on derivatives, tax	5,000,000
Other comprehensive income (loss) related to noncontrolling interests	$ 0	$ 0	$ 0	$ 0