Note 5 - Acquired Intangibles and Goodwill Acquired Intangibles and Goodwill (Details)	12 Months Ended
	Dec. 31, 2018 USD ($)		Dec. 31, 2017 USD ($)		Dec. 31, 2016 USD ($)
Goodwill
Acquired Intangibles, Net	$ 1,104,000,000		$ 1,154,000,000	[1]
Finite-Lived Intangible Assets, Accumulated Amortization	156,000,000		106,000,000
Amortization of Intangible Assets	50,000,000		46,000,000		$ 29,000,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	50,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	50,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	50,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	50,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	50,000,000
Goodwill	1,051,000,000		956,000,000	[1]
Goodwill, Impairment Loss	$ 0		0		$ 0
Number of Reporting Units	5
Operating Segments [Member] | Terminalling and Transportation Segment [Member]
Goodwill
Goodwill	$ 284,000,000	[2]	260,000,000	[3],[4]
Operating Segments [Member] | Gathering and Processing [Member]
Goodwill
Goodwill	718,000,000	[2]	607,000,000	[3],[4]
Operating Segments [Member] | Wholesale [Member]
Goodwill
Goodwill	$ 49,000,000	[2]	89,000,000
Predecessor [Member] | Operating Segments [Member] | Terminalling and Transportation Segment [Member]
Goodwill
Goodwill			39,000,000
Predecessor [Member] | Operating Segments [Member] | Gathering and Processing [Member]
Goodwill
Goodwill			$ 225,000,000

[1] Adjusted to include the historical results of the Predecessors. See Notes 1 and 2 for further discussion.

[2] In connection with the finalization of the purchase price allocation associated with the WNRL Merger during 2018, we reallocated goodwill amongst the segments.

[3] Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.

[4] Goodwill transferred to the Partnership in the 2018 Drop Down was recorded at historical cost. We recorded goodwill of $39 million and $225 million in our Terminalling and Transportation and Gathering and Processing segments, respectively, as of December 31, 2017 as a result of the 2018 Drop Down.