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Estimates (Components Of Intangibles And Other Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Gross Carrying Amount | $ 8,422 | $ 7,953
Accumulated Amortization | (2,566) | (2,207)
Customer relationships, contracts and agreements (3 to 46 years) |  |
Gross Carrying Amount | 7,982 | 7,513
Accumulated Amortization | (2,464) | (2,117)
Patents (10 years) |  |
Gross Carrying Amount | 48 | 48
Accumulated Amortization | (44) | (40)
Trade names (20 years) |  |
Gross Carrying Amount | 66 | 66
Accumulated Amortization | (38) | (35)
Other (5 to 20 years) |  |
Gross Carrying Amount | 19 | 19
Accumulated Amortization | (20) | (15)
Total Amortizable Intangible Assets [Member] |  |
Gross Carrying Amount | 8,115 | 7,646
Accumulated Amortization | (2,566) | (2,207)
Trademarks [Member] |  |
Gross Carrying Amount | 295 | 295
Accumulated Amortization | 0 | 0
Other |  |
Gross Carrying Amount | 12 | 12
Accumulated Amortization | 0 | 0
Non-amortizable intangible assets [Member] |  |
Gross Carrying Amount | 307 | 307
Accumulated Amortization | $ 0 | $ 0

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