Commitments and Contingent Liabilities, Operating Leases (Details) $ in Millions	Mar. 31, 2024 USD ($)
Operating Leases [Abstract]
ROU asset carrying value	$ 381	[1]
ROU asset, Consolidated Balance Sheet line item	Other Assets, Noncurrent
Lease liability carrying value	$ 416	[2]
Lease liability, current	$ 83
Lease liability, current, Consolidated Balance Sheet line item	Other Liabilities, Current
Lease liability, noncurrent	$ 333
Lease liability, noncurrent, Consolidated Balance Sheet line item	Other Liabilities, Noncurrent
Storage and Pipeline Facilities [Member]
Operating Leases [Abstract]
ROU asset carrying value	$ 191	[1]
Lease liability carrying value	$ 190	[2]
Weighted-average remaining term	8 years
Weighted-average discount rate	4.30%	[3]
Transportation Equipment [Member]
Operating Leases [Abstract]
ROU asset carrying value	$ 41	[1]
Lease liability carrying value	$ 42	[2]
Weighted-average remaining term	4 years
Weighted-average discount rate	4.80%	[3]
Office and Warehouse Space [Member]
Operating Leases [Abstract]
ROU asset carrying value	$ 149	[1]
Lease liability carrying value	$ 184	[2]
Weighted-average remaining term	13 years
Weighted-average discount rate	3.00%	[3]

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

[2] At March 31, 2024, lease liabilities of $83 million and $333 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.