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Business Restructuring Charges (Tables)
6 Months Ended
Mar. 31, 2022
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Accrual Activity Restructuring liability activity for the six months ended March 31, 2022 was as follows:
(Millions of dollars)Employee
Termination
OtherTotal
Balance at September 30, 2021$14 $$19 
Charged to expense30 34 
Cash payments(6)(32)(38)
Balance at March 31, 2022$12 $$15