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Business Restructuring Charges (Tables)
6 Months Ended
Mar. 31, 2023
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Accrual Activity
Restructuring liability activity for the six months ended March 31, 2023 was as follows:
(Millions of dollars)Employee
Termination
Other (a)
Total
Balance at September 30, 2022$24 $11 $35 
Charged to expense10 49 59 
Cash payments(14)(46)(60)
Non-cash settlements— (11)(11)
Balance at March 31, 2023$20 $$23 
(a)    Expense primarily relates to other costs associated with the execution of the Company’s cost efficiency and restructuring programs, such as incremental project management costs and asset write-offs.