Lease Accounting (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Operating Leased Assets [Line Items]
Property, plant and equipment	$ 15,256	$ 8,914
Accumulated depreciation	(1,848)	(1,240)
Property, plant and equipment, net	13,408	7,674
2026	154
2027	124
2028	98
2029	78
2030	68
Lessor, Operating Lease, Payment to be Received, after Year Five	369
Lessor, Operating Lease, Payments to be Received	891
2026	240
2026	16
2027	196
2027	15
2028	171
2028	15
2029	149
2029	12
2030	138
2030	6
Operating lease - Thereafter	1,445
Finance lease - Thereafter	53
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	873
Finance Lease, Liability, Undiscounted Excess Amount	30
Operating Lease, Payments	(92)	(49)
Finance Lease, Interest Payment on Liability	(4)	(1)
Finance Lease, Principal Payments	(1)	(1)
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	1	0
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	279	3
Operating Lease, Cost	96	50
Finance lease cost - Amortization of leased assets	4	1
Finance lease cost - Interest expense	3	2
Short-Term Lease, Cost	7	4
Variable Lease, Cost	11	18
Sublease Income	(35)	(45)
Lease, Cost	$ 86	$ 30
Operating Lease, Weighted Average Remaining Lease Term	16 years	19 years
Finance Lease, Weighted Average Remaining Lease Term	11 years	18 years
Operating Lease, Weighted Average Discount Rate, Percent	6.00%	6.00%
Finance Lease, Weighted Average Discount Rate, Percent	5.00%	6.00%
2026	$ 256
2027	211
2028	186
2029	161
2030	144
Thereafter	1,498
Lease Liabilities, Due	2,456
Less: interest	903
Present value of lease liabilities	1,553
Lessee, Operating Lease, Liability, Payments, Due	2,339
Finance Lease, Liability, Payment, Due	117
Present value of lease liabilities - Operating leases	1,466
Finance Lease, Liability	87	$ 47
Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	2,770	1,672
Accumulated depreciation	(829)	(449)
Property, plant and equipment, net	$ 1,941	1,223
Terminal facilities, tank cars, office space, land and equipment
Operating Leased Assets [Line Items]
Lessor, Operating Lease, Term of Contract	5 years
Minimum [Member]
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Renewal Term	5 years
Minimum [Member] | Terminal facilities, tank cars, office space, land and equipment
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	5 years
Maximum [Member]
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Renewal Term	10 years
Maximum [Member] | Terminal facilities, tank cars, office space, land and equipment
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	15 years
Land and improvements
Operating Leased Assets [Line Items]
Property, plant and equipment	$ 2,081	739
Buildings, equipment and leasehold improvements (1 to 40 years)
Operating Leased Assets [Line Items]
Property, plant and equipment	4,695	1,315
Buildings, equipment and leasehold improvements (1 to 40 years) | Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	1,045	556
Land and Land Improvements | Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	698	513
Product storage and related facilities
Operating Leased Assets [Line Items]
Property, plant and equipment	1,400	891
Product storage and related facilities | Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	410	283
Other
Operating Leased Assets [Line Items]
Property, plant and equipment	727	403
Other | Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	81	39
Construction Work in Process | Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	54	64
Pipelines
Operating Leased Assets [Line Items]
Property, plant and equipment	3,747	3,553
Pipelines | Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	377	217
Right of way
Operating Leased Assets [Line Items]
Property, plant and equipment	1,728	1,727
Right of way | Leased to Third Parties
Operating Leased Assets [Line Items]
Property, plant and equipment	$ 105	$ 0