Leases, Total Lease Cost by Class of Underlying Asset (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finance lease cost:
Amortization of ROU assets	$ 283	$ 246	$ 218
Interest on lease liabilities	116	107	84
Lease cost:
Operating lease cost	508	418	379
Variable lease cost	160	183	138
Short-term lease cost	360	257	157
Sublease income	(35)	(31)	(29)
Total lease cost	1,392	1,180	947
Pipelines, Terminals, and Tanks [Member]
Finance lease cost:
Amortization of ROU assets	247	213	183
Interest on lease liabilities	107	101	78
Lease cost:
Operating lease cost	167	166	171
Variable lease cost	114	114	79
Short-term lease cost	27	18	15
Sublease income	0	0	0
Total lease cost	662	612	526
Maritime Equipment [Member]
Finance lease cost:
Amortization of ROU assets	0	0	0
Interest on lease liabilities	0	0	0
Lease cost:
Operating lease cost	210	127	102
Variable lease cost	36	61	50
Short-term lease cost	196	125	82
Sublease income	(33)	(29)	(27)
Total lease cost	409	284	207
Railroad Transportation Equipment [Member]
Finance lease cost:
Amortization of ROU assets	3	3	3
Interest on lease liabilities	0	1	1
Lease cost:
Operating lease cost	89	80	68
Variable lease cost	0	0	0
Short-term lease cost	3	2	3
Sublease income	0	0	0
Total lease cost	95	86	75
Other Assets [Member]
Finance lease cost:
Amortization of ROU assets	33	30	32
Interest on lease liabilities	9	5	5
Lease cost:
Operating lease cost	42	45	38
Variable lease cost	10	8	9
Short-term lease cost	134	112	57
Sublease income	(2)	(2)	(2)
Total lease cost	$ 226	$ 198	$ 139