Commitments and Contingent Liabilities, Operating Leases (Details) $ in Millions	Sep. 30, 2022 USD ($)
Operating Leases [Abstract]
ROU asset carrying value	$ 369	[1]
Lease liability carrying value	404	[2]
Lease liability, current	60
Lease liability, noncurrent	344
Storage and Pipeline Facilities [Member]
Operating Leases [Abstract]
ROU asset carrying value	194	[1]
Lease liability carrying value	$ 195	[2]
Weighted-average remaining term	10 years
Weighted-average discount rate	3.60%	[3]
Transportation Equipment [Member]
Operating Leases [Abstract]
ROU asset carrying value	$ 16	[1]
Lease liability carrying value	$ 17	[2]
Weighted-average remaining term	3 years
Weighted-average discount rate	3.10%	[3]
Office and Warehouse Space [Member]
Operating Leases [Abstract]
ROU asset carrying value	$ 159	[1]
Lease liability carrying value	$ 192	[2]
Weighted-average remaining term	14 years
Weighted-average discount rate	2.90%	[3]

[1] ROU asset amounts are a component of “Other assets” on our Unaudited Condensed Consolidated Balance Sheet.

[2] At September 30, 2022, lease liabilities of $60 million and $344 million were included within “Other current liabilities” and “Other long-term liabilities,” respectively.

[3] The discount rate for each category of assets represents the weighted average of either (i) the implicit rate applicable to the underlying leases (where determinable) or (ii) our incremental borrowing rate adjusted for collateralization (if the implicit rate is not determinable).  In general, the discount rates are based on either information available at the lease commencement date or January 1, 2019 for leases existing at the adoption date for ASC 842, Leases.