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Debt and Financing Arrangements
 9 Months Ended
Jun. 30, 2021
Debt Disclosure [Abstract]  
Debt and Financing Arrangements Debt and Financing Arrangements
Net Financing Charges

Net financing charges consisted of the following (in millions):
Three Months Ended
June 30,		Nine Months Ended
June 30,
2021202020212020
Interest expense, net of capitalized interest costs$55 $58 $167 $182 
Banking fees and bond cost amortization7 8 19 18 
Interest income(1)(3)(7)(21)
Net foreign exchange results for financing activities(5)(5)(20)(10)
Net financing charges$56 $58 $159 $169 

As of June 30, 2021, the Company has a syndicated $2.5 billion committed revolving credit facility, which is scheduled to expire in December 2024, and a syndicated $500 million committed revolving credit facility, which is scheduled to expire in December 2021. As of June 30, 2021, there were no draws on the facilities.

In July 2021, the Company issued a notice of redemption for all of its outstanding 3.75% senior notes maturing December 1, 2021. The notes have an aggregate principal amount of $171 million and will be redeemed on September 1, 2021.

In May 2021, the Company retired €35 million in principal amount, plus accrued interest, of its 1.00% fixed rate notes expiring in September 2023.

In March 2021, the Company entered into a bank term loan arrangement totaling €200 million due in March 2022 and retired $257 million in principal amount, plus accrued interest, of its 4.25% fixed rate notes that expired in March 2021.