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TRANSACTIONS WITH MAJOR CUSTOMERS	12 Months Ended
TRANSACTIONS WITH MAJOR CUSTOMERS	Dec. 31, 2020
Risks and Uncertainties [Abstract]
TRANSACTIONS WITH MAJOR CUSTOMERS	TRANSACTIONS WITH MAJOR CUSTOMERS For the year ended December 31, 2020 and 2019, no customer accounted for more than 10 percent of our consolidated revenue and trade accounts receivable. At December 31, 2018, Tenaska owed the Partnership approximately $4 million, which was approximately 10 percent of our consolidated trade accounts receivable. As noted under Note 6, in 2018, Tenaska assumed Anadarko’s ship-or-pay contract obligation on Bison. After assuming the transportation obligation, Bison accepted an offer from Tenaska to terminate its contract. For the year ended December 31, 2018, revenues from both Anadarko and Tenaska amounted to $144 million, which was approximately 36 percentof our consolidated revenues.