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Other Deductions, Net
6 Months Ended
Mar. 31, 2023
Other Income and Expenses [Abstract]  
Other Deductions, Net OTHER DEDUCTIONS, NETOther deductions, net are summarized below:
 Three Months Ended
March 31,
Six Months Ended
March 31,
 2022 2023 2022 2023 
Amortization of intangibles (intellectual property and
  customer relationships)
$57 119 114 237 
Restructuring costs19 15 29 
Acquisition/divestiture costs10 30 10 
Foreign currency transaction (gains) losses(20)26 (27)19 
Investment-related gains & gains from sales of capital
  assets
— (35)(15)(39)
Russia business exit—  — 47 
Other(25)(30)(51)(74)
Total$28 109 66 229 
Intangibles amortization for the three and six months ended March 31, 2023 included $64 and $128, respectively, related to the Heritage AspenTech acquisition. Foreign currency transaction gains/losses for the three and six months ended March 31, 2023 included a mark-to-market loss of $14 and a gain of $21, respectively, related to foreign currency forward contracts entered into by AspenTech to mitigate the impact of foreign currency exchange associated with the Micromine purchase price. The Company recognized a mark-to-market gain of $35 for the three months ended March 31, 2023 related to its equity investment in National Instruments Corporation (see Note 11 for further information). Other is composed of several items, including pension expense, litigation costs, provision for bad debt and other items, none of which is individually significant.