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Short-Term Borrowings And Lines Of Credit
 12 Months Ended
Sep. 30, 2020
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:
2019 2020 
Current maturities of long-term debt$515 322 
Commercial paper929 838 
     Total$1,444 1,160 
Interest rate for weighted-average short-term borrowings at year end2.1%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 and currency denomination alternatives at the Company’s option. Fees to maintain the facility are immaterial.