Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Summary Of Property, Plant And Equipment

(In millions)	Estimated Useful Lives	December 31,
		2016		2015
Refining & Marketing	2 - 30 years	$	19,447	$	18,396
Speedway	4 - 25 years	5,078		5,067
Midstream	3 - 42 years	12,664		11,379
Corporate and Other	4 - 40 years	817		762
Total		38,006		35,604
Less accumulated depreciation		12,241		10,440
Property, plant and equipment, net		$	25,765	$	25,164