Revenue Recognition - Disaggregated Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	$ 500	$ 424	$ 447
Total revenue	556	481	503
Third Parties | Revenue expected to be recognized on multi-year committed shipper transportation contracts
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	142	114	134
Third Parties | Revenue expected to be recognized on multi-year storage service contracts
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	9	9	9
Third Parties | Product Revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	1	0	5
Related Parties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Lease revenue – related parties	56	57	56
Related Parties | Revenue expected to be recognized on multi-year committed shipper transportation contracts
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	174	164	210
Related Parties | Revenue expected to be recognized on multi-year storage service contracts
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	7	8	7
Related Parties | Revenue expected to be recognized on multi-year terminaling service contracts
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	120	103	47
Related Parties | Terminaling Services, Major Maintenance
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	11	7	0
Related Parties | Product Revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	36	19	35
Related Parties | Transportation Services Nonlease Service
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total Topic 606 revenue	$ 5	$ 5	$ 5