Leases - Balance Sheet Summary (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Operating Leases
Lease liability	$ 35
Finance Leases
Lease liability	50
Pipeline and storage
Operating Leases
ROU assets, net	17	$ 17
Lease liability	17	17
Finance Leases
ROU assets, net	21	23
Lease liability	33	35
Railcars
Operating Leases
ROU assets, net	4	6
Lease liability	4	6
Finance Leases
ROU assets, net	0	0
Lease liability	0	0
Real estate and other
Operating Leases
ROU assets, net	14	14
Lease liability	14	14
Finance Leases
ROU assets, net	15	18
Lease liability	$ 17	$ 19

Present value of lessee's discounted obligation for lease payments from finance lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Amount, after accumulated amortization, of right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- References

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

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