Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Total revenues	$ 16,596	$ 16,994	$ 11,723
Cost of sales and operating expenses:
Cost of sales	15,380	15,872	10,615
General and administrative	136	141	140
Other operating	304	363	375
Lease expense	61
Lease expense		72	81
Loss on disposal of assets and impairment charges	(68)	(19)	(114)
Depreciation, amortization and accretion	183	182	169
Total cost of sales and operating expenses	16,132	16,649	11,494
Operating income	464	345	229
Interest expense, net	173	144	209
Other expense (income), net	(3)	0	0
Equity in earnings of unconsolidated affiliate	(2)	0	0
Loss on extinguishment of debt and other, net	0	109	0
Income from continuing operations before income taxes	296	92	20
Income tax expense (benefit)	(17)	34	(306)
Income from continuing operations	313	58	326
Loss from discontinued operations, net of income taxes	0	(265)	(177)
Net income (loss) and comprehensive income (loss)	$ 313	$ (207)	$ 149
Weighted average limited partner units outstanding:
Cash distribution per unit	$ 3.30	$ 3.30	$ 3.30
Common Units [Member]
Cost of sales and operating expenses:
Net income (loss) and comprehensive income (loss)	$ 313	$ (209)	$ 126
Net income (loss) per common unit - basic:
Continuing operations	$ 2.84	$ (0.25)	$ 2.13
Discontinued operations	0	(3.14)	(1.78)
Net income (loss)	2.84	(3.39)	0.35
Net income (loss) per common unit - diluted:
Continuing operations	2.82	(0.25)	2.12
Discontinued operations	0	(3.14)	(1.78)
Net income (loss)	$ 2.82	$ (3.39)	$ 0.34
Weighted average limited partner units outstanding:
Common units - basic	82,755,520	84,299,893	99,270,120
Common units - diluted	83,551,962	84,820,570	99,728,354
Motor Fuel Sales [Member]
Revenues:
Total revenues	$ 16,176	$ 16,504	$ 10,910
Non Motor Fuel Sales [Member]
Revenues:
Total revenues	278	360	724
Lease income [Member]
Revenues:
Total revenues	$ 142	$ 130	$ 89