Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net income	$ 963	$ 916	$ 2,008	$ 1,640
Other comprehensive income:
Change in Pension and Retiree Health and Welfare benefits, net of tax benefit of $1 million, $0 million, $1 million and $0 million, respectively	0	0	0	0
Change in accumulated other comprehensive income of equity method investees	0	0	(1)	3
Other Comprehensive Income (Loss), Net of Tax	0	0	(1)	3
Total comprehensive income	$ 963	$ 916	$ 2,007	$ 1,643