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Pensions And Other Postretirement Benefits - Accumulated Benefit Obligations and Projected Benefit Obligations (Details) - Pension Plan - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
U.S. |  |
ABO and PBO [Line Items] |  |
ABO | $ 44,798 | $ 60,188
Plans with ABO in Excess of Plan Assets [Abstract] |  |
ABO | 5,668 | 8,396
Fair Value of Plan Assets | 4,214 | 6,233
Plans with PBO in Excess of Plan Assets [Abstract] |  |
PBO | 5,687 | 8,415
Fair Value of Plan Assets | 4,214 | 6,223
Non-U.S. |  |
ABO and PBO [Line Items] |  |
ABO | 12,505 | 18,244
Plans with ABO in Excess of Plan Assets [Abstract] |  |
ABO | 4,739 | 6,464
Fair Value of Plan Assets | 211 | 300
Plans with PBO in Excess of Plan Assets [Abstract] |  |
PBO | 4,815 | 6,533
Fair Value of Plan Assets | $ 211 | $ 300

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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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 + Details
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- Definition Amount of accumulated benefit obligation for defined benefit plan with accumulated 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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details
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