ACQUISITIONS Narrative 1 (Details) - CHS Acquisition [Member] $ in Millions |
Apr. 16, 2018
USD ($)
|
|---|---|
| Business Acquisition [Line Items] | |
| Description of CHS Acquisition | On April 16, 2018, we acquired CHS Inc.’s Council Bluffs pipeline system, comprised of a 227-mile pipeline and 18 storage tanks |
| Purchase price of CHS Acquisition | $ 37.5 |