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Debt and Financing Arrangements - Additional Information (Detail) € in Millions, $ in Millions | 9 Months Ended |
--- | --- | ---
Jun. 30, 2022 USD ($) | Jun. 30, 2022 EUR (€) | Sep. 30, 2021 USD ($)
Debt Instrument [Line Items] |  |  |
Commercial Paper | $ 1,600 |  | $ 0
$2.5 billion facility expiring Dec 2024 [Domain] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 2,500 |  |
$500 million facility expiring Dec 2022 [Domain] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 500 |  |
Bank term loan due October 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Proceeds from Short-term Debt | 208 | € 200 |
Bank term loans due March 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Proceeds from Short-term Debt | $ 297 | € 285 |

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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