Commitments and Contingent Liabilities, Operating Leases (Details) $ in Millions	Jun. 30, 2022 USD ($)
Operating Leases [Abstract]
ROU asset carrying value	$ 365	[1]
Lease liability carrying value	400	[2]
Lease liability, current	55
Lease liability, noncurrent	345
Storage and Pipeline Facilities [Member]
Operating Leases [Abstract]
ROU asset carrying value	185	[1]
Lease liability carrying value	$ 186	[2]
Weighted-average remaining term	10 years
Weighted-average discount rate	3.50%	[3]
Transportation Equipment [Member]
Operating Leases [Abstract]
ROU asset carrying value	$ 18	[1]
Lease liability carrying value	$ 20	[2]
Weighted-average remaining term	3 years
Weighted-average discount rate	2.90%	[3]
Office and Warehouse Space [Member]
Operating Leases [Abstract]
ROU asset carrying value	$ 162	[1]
Lease liability carrying value	$ 194	[2]
Weighted-average remaining term	15 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 June 30, 2022, lease liabilities of $55 million and $345 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.