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Goodwill And Other Intangible Assets (Schedule of Finite-lived Intangible Assets And Indefinite-lived Intangible Assets By Major Class) (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Intangible Assets, Gross (Excluding Goodwill) [Abstract] |  |
Finite-lived intangibles, gross carrying amount | $ 21,881 | $ 9,080
Total intangibles, gross carrying amount | 26,056 | 13,296
Finite-lived intangibles, accumulated amortization | (4,774) | (3,546)
Trademarks and trade names |  |
Intangible Assets, Gross (Excluding Goodwill) [Abstract] |  |
Indefinite-lived intangibles, gross carrying amount | 4,175 | 4,216
Patents and technology |  |
Intangible Assets, Gross (Excluding Goodwill) [Abstract] |  |
Finite-lived intangibles, gross carrying amount | 12,526 | 2,713
Finite-lived intangibles, accumulated amortization | (1,539) | (934)
Customer relationships, trade names and other intangibles |  |
Intangible Assets, Gross (Excluding Goodwill) [Abstract] |  |
Finite-lived intangibles, gross carrying amount | 9,355 | 6,367
Finite-lived intangibles, accumulated amortization | $ (3,235) | $ (2,612)

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