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v3.22.2.2

Debt - Summary of Short-Term Debt (Detail) - USD ($) $ in Millions | Sep. 30, 2022 | Sep. 30, 2021
--- | --- | ---
Short-term Debt [Line Items] |  |
Current debt obligations | $ 2,179 | $ 500
Commercial Paper |  |
Short-term Debt [Line Items] |  |
Short-term Debt | $ 230 | 0
1.000% Notes due December 15, 2022 |  |
Short-term Debt [Line Items] |  |
Interest rate | 1.00% |
Current portion of long-term debt | $ 487 | 0
Floating Rate Notes Due June 6, 2022 |  |
Short-term Debt [Line Items] |  |
Current portion of long-term debt | $ 0 | 500
Notes 1.401% due May 23, 2023 |  |
Short-term Debt [Line Items] |  |
Interest rate | 1.401% |
Current portion of long-term debt | $ 292 | 0
0.632% Notes due June 4, 2023 |  |
Short-term Debt [Line Items] |  |
Interest rate | 0.632% |
Current portion of long-term debt | $ 779 | $ 0
0.000% Notes due August 13, 2023 |  |
Short-term Debt [Line Items] |  |
Interest rate | 0.00% | 0.00%
Current portion of long-term debt | $ 390 | $ 0

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