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Other Operating Income, Net and Other Non-Operating Income (Expense), Net (Tables)
 12 Months Ended
Sep. 30, 2021
Component of Operating Income [Abstract]  
Other Operating Income, Net
Other operating income, net, comprises the following:
202120202019
Finance charges$17 $9 $17 
Gains on sales of fixed assets, net11 5 3 
Gain on early derivative termination5 — — 
Interest and interest-related income— 2 6 
Utility non-tariff service income— — 1 
Other, net— 5 4 
Total other operating income, net$33 $21 $31 
Schedule of Other Non-Operating Income (Expense), Net Other non-operating income (expense), net comprises the following:
202120202019
Gains (losses) on foreign currency contracts, net$9 $(20)$38 
Amortization of excluded components of certain net investment hedges
2 — — 
Pension and other postretirement plans non-service income, net1 — 1 
Total other non-operating income (expense), net$12 $(20)$39