Acquisitions Dropdown (Details) - USD ($) $ in Millions	Aug. 06, 2018	May 01, 2018
Logistics Assets Drop Down and Asset Transfer
Business Combination, Consideration Transferred	$ 1,550
Wamsutter Pipeline System
Distributions in connection with acquisitions		$ 180

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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