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SEC Schedule, Article 12-09, Valuation and Qualifying Accounts (Details) - SEC Schedule, 12-09, Allowance, Credit Loss - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | $ 1,730 | $ 1,570 | $ 2,120 | $ 2,060
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 1,480 | 830 | 2,080 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account | 80 | 190 | 100 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | $ 1,400 | $ 1,570 | $ 2,120 |

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