Segment Information

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

SEGMENT INFORMATION

9. SEGMENT INFORMATION

The following table reflects activity related to our reportable segments (in millions):

	Refining		Ethanol		Corporate			Total
Three months ended March 31, 2015:
Operating revenues from external customers	$	20,529	$	801	$	—		$	21,330
Intersegment revenues	—		28		—			28
Operating income (loss)	1,641		12		(158		)	1,495
Three months ended March 31, 2014:
Operating revenues from external customers	32,452		1,211		—			33,663
Intersegment revenues	—		25		—			25
Operating income (loss)	1,280		243		(172		)	1,351

Total assets by reportable segment were as follows (in millions):

	March 31, 2015		December 31, 2014
Refining	$	38,857	$	40,103
Ethanol	986		954
Corporate	5,898		4,493
Total assets	$	45,741	$	45,550