Leases, Total Lease Cost by Class of Underlying Asset (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finance lease cost:
Amortization of ROU assets	$ 218	$ 167	$ 128
Interest on lease liabilities	84	72	98
Lease cost:
Operating lease cost	379	381	434
Variable lease cost	138	79	99
Short-term lease cost	157	96	91
Sublease income	(29)	(7)	(12)
Total lease cost	947	788	838
Pipelines, Terminals, and Tanks [Member]
Finance lease cost:
Amortization of ROU assets	183	137	109
Interest on lease liabilities	78	66	92
Lease cost:
Operating lease cost	171	163	165
Variable lease cost	79	51	53
Short-term lease cost	15	5	9
Sublease income	0	0	0
Total lease cost	526	422	428
Transportation, Marine [Member]
Finance lease cost:
Amortization of ROU assets	0	0	0
Interest on lease liabilities	0	0	0
Lease cost:
Operating lease cost	102	105	156
Variable lease cost	50	21	40
Short-term lease cost	82	44	45
Sublease income	(27)	(4)	(10)
Total lease cost	207	166	231
Transportation, Rail [Member]
Finance lease cost:
Amortization of ROU assets	3	2	2
Interest on lease liabilities	1	1	0
Lease cost:
Operating lease cost	68	64	61
Variable lease cost	0	0	1
Short-term lease cost	3	1	0
Sublease income	0	0	0
Total lease cost	75	68	64
Other [Member]
Finance lease cost:
Amortization of ROU assets	32	28	17
Interest on lease liabilities	5	5	6
Lease cost:
Operating lease cost	38	49	52
Variable lease cost	9	7	5
Short-term lease cost	57	46	37
Sublease income	(2)	(3)	(2)
Total lease cost	$ 139	$ 132	$ 115