COMMITMENTS AND CONTINGENCIES - LESSOR INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lessor, Lease, Description [Line Items]
Property, plant and equipment, gross	$ 80,397	$ 72,495
Accumulated depreciation	(18,960)	(17,535)
Operating leases
2025	318
2026	272
2027	269
2028	268
2029	246
Thereafter	2,324
Total undiscounted cash flows	3,697
Fixed lease payments	340	321	$ 290
Variable lease payments	38	34	10
Total revenues from operating leases	$ 378	355	300
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Unregulated Operating Revenue
Depreciation expense	$ 2,409	2,202	1,995
Sales-type leases
2025	17
2026	9
2027	0
2028	0
2029	0
Thereafter	0
Total undiscounted cash flows	26
Less: present value of lease payments (recognized as lease receivable)	(23)
Difference between undiscounted cash flows and discounted cash flows	3
Interest income	5	6	8
Total revenues from sales-type lease	5	6	8
Other Current Assets
Sales-type leases
Less: present value of lease payments (recognized as lease receivable)	(15)
Other long-term assets
Sales-type leases
Less: present value of lease payments (recognized as lease receivable)	(8)
Pipelines and storage
Lessor, Lease, Description [Line Items]
Property, plant and equipment, gross	1,313	1,304
Refined products terminals
Lessor, Lease, Description [Line Items]
Property, plant and equipment, gross	623	621
Other
Lessor, Lease, Description [Line Items]
Property, plant and equipment, gross	77	77
Lease assets
Lessor, Lease, Description [Line Items]
Property, plant and equipment, gross	2,013	2,002
Accumulated depreciation	(605)	(539)
Property, plant and equipment, net	1,408	1,463
Operating leases
Depreciation expense	$ 73	$ 62	$ 54