Organization and Description of Business (Narrative) (Details) bbl in Millions	Dec. 31, 2019 Terminal bbl mi
Refined Products Segment [Member]
Organization and Description of Business [Line Items]
Number of Pipeline Terminals | Terminal	53
Number of Independent Terminals | Terminal	25
Refined Products Segment [Member] | Refined Products Transportation Services [Member]
Organization and Description of Business [Line Items]
Pipeline, Length | mi	9,800
Crude Oil Pipeline and Terminals Segment [Member]
Organization and Description of Business [Line Items]
Pipeline, Length | mi	2,200
Storage Capacity	35
Contracted Storage	23
Pipeline, Length - Wholly Owned | mi	1,000
Storage Capacity - Wholly Owned	28
Contracted Storage - Wholly Owned	20
Marine Storage Segment [Member]
Organization and Description of Business [Line Items]
Number of Independent Terminals | Terminal	6
Storage Capacity	31
Storage Capacity - Wholly Owned	25