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Goodwill and Value of business acquired, and Other Intangible Assets (Other Intangible Assets) (Details)) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
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Goodwill and Intangible Assets Disclosure [Abstract] |  |
Intangible assets subject to amortization | $ 3,350 | $ 2,459
Intangible assets not subject to amortization | 3,494 | 2,982
Other intangible assets | 6,844 | $ 5,441
Acquired Indefinite-Lived Intangible Assets [Line Items] |  |
2028, Other intangible assets | $ 253 |

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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 926 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483154/926-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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