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Interest Income and Other Non-Operating Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Other Income and Expenses [Abstract] |  |  |
Non-service pension and OPEB income | $ 1,095 | $ 797 | $ 1,665
Interest income | 241 | 429 | 335
Licensing agreements income | 211 | 165 | 296
Revaluation of investments | 265 | 80 | 258
Other | 73 | (2) | 42
Total interest income and other non-operating income, net | $ 1,885 | $ 1,469 | $ 2,596

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- Definition Pension and Other Postretirement Benefits, Nonoperating Income + References No definition available. + Details
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- Definition The aggregate amount of income from investments (for example, dividends) not considered a component of the entity's core operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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