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Short-Term Borrowings And Lines Of Credit
 12 Months Ended
Sep. 30, 2021
Debt Disclosure [Abstract]  
Short-Term Borrowings And Lines Of Credit SHORT-TERM BORROWINGS AND LINES OF CREDIT
Short-term borrowings and current maturities of long-term debt are as follows:
2020 2021 
Current maturities of long-term debt$322 538 
Commercial paper838 334 
     Total$1,160 872 
Interest rate for weighted-average short-term borrowings at year end0.1%0.1%

In May 2018, the Company entered into a $3.5 billion five-year revolving backup credit facility with various banks, which replaced the April 2014 $3.5 billion facility. The credit facility is maintained to support general corporate purposes, including commercial paper borrowings. The Company has not incurred any borrowings under this or previous facilities. The credit facility contains no financial covenants and is not subject to termination based on a change of credit rating or material adverse changes. The facility is unsecured and may be accessed under various interest rate alternatives at the Company’s option. Fees to maintain the facility are immaterial.