Pension and Other Postretirement Employee Benefit Plans (PBO) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension benefit plans \| U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 98	$ 2,532
Fair value of plan assets	0	2,303
Pension benefit plans \| Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	754	1,125
Fair value of plan assets	260	357
Other postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	106	135
Fair value of plan assets	$ 0	$ 0

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.

No definition available.

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- Definition

Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921

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- Definition

Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets.

+ References

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