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Receivables, Loans, Notes Receivable, and Others (Tables) | 12 Months Ended
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Sep. 30, 2021
Receivables [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable | Accounts receivable, net consisted of the following (in millions):
|  | September 30, |  |
|  | 2021 |  | 2020 |  |
Accounts receivable |  | $ | 5,723 |  |  | $ | 5,467 |  |  |
Less: Allowance for expected credit losses (1) |  | (110) |  |  | (173) |  |  |
Accounts receivable, net |  | $ | 5,613 |  |  | $ | 5,294 |  |  |
(1) Allowance for doubtful accounts as of September 30, 2020, prior to the adoption of ASU 2016-13.
Accounts Receivable, Allowance for Credit Loss | The changes in the allowance for expected credit losses related to accounts receivable for the year ended September 30, 2021 were as follows (in millions):
|  | Year Ended September 30, 2021
Balance as of September 30, 2020 |  | $ | 173 |  |
Provision for expected credit losses |  | (3) |  |
Write-offs charged against the allowance for expected credit losses |  | (65) |  |
Currency translation |  | 1 |  |
Other (including impact of adoption of ASU 2016-13) |  | 4 |  |
Balance as of September 30, 2021 |  | $ | 110 |  |

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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