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Guarantees - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Feb. 28, 2022
APLNG
Guarantor Obligations [Line Items]
Ownership percentage in equity investment	47.50%	47.50%
Finance Reserve Guarantee | APLNG
Guarantor Obligations [Line Items]
Guarantor obligations, remaining term	9 years
Maximum potential amount of future payments	$ 210
Guarantor obligations, current carrying value	14
Max Potential Future Payments Reckless Breach | APLNG
Guarantor Obligations [Line Items]
Maximum potential amount of future payments	1,400
Max Potential Future Payments Pro-rata Share | APLNG
Guarantor Obligations [Line Items]
Maximum potential amount of future payments	820
Continued Development | APLNG
Guarantor Obligations [Line Items]
Maximum potential amount of future payments	290
Guarantor obligations, current carrying value	$ 20
Continued Development | APLNG | Minimum
Guarantor Obligations [Line Items]
Guarantor obligations, term	15 years
Continued Development | APLNG | Maximum
Guarantor Obligations [Line Items]
Guarantor obligations, term	23 years
Other Guarantees
Guarantor Obligations [Line Items]
Maximum potential amount of future payments	$ 720
Guarantor obligations, current carrying value	$ 8
Other Guarantees | Minimum
Guarantor Obligations [Line Items]
Guarantor obligations, term	1 year
Other Guarantees | Maximum
Guarantor Obligations [Line Items]
Guarantor obligations, term	5 years
Indemnifications
Guarantor Obligations [Line Items]
Guarantor obligations, current carrying value	$ 20

X

- Definition

Guarantee Obligations, Period

+ References

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Guarantor Obligations, Remaining Term

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
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