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SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Allowance for doubtful accounts |  |  |
Valuation and Qualifying Account |  |  |
Balance at beginning of year | $ 64 | $ 53 | $ 42
Charged (credited) to costs and expenses | 69 | 61 | 36
Other | (62) | (50) | (25)
Balance at end of year | 71 | 64 | 53
Deferred tax assets valuation allowance |  |  |
Valuation and Qualifying Account |  |  |
Balance at beginning of year | 141 | 138 | 105
Charged (credited) to costs and expenses | (38) | (14) | 23
Other | 38 | 17 | 10
Balance at end of year | $ 141 | $ 141 | $ 138

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