XML 92 R81.htm IDEA: XBRL DOCUMENT v3.24.3
Employee Benefit Plans - Net Periodic Defined Benefit Pension and Other Postretirement Benefit Costs (Detail) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Pension Benefits [Member] | U.S. Defined Benefit Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other income (expense) Other income (expense) Other income (expense)
Pension Benefits [Member] | Foreign Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 3 $ 3 $ 4
Interest cost 8 7 4
Expected return on plan assets $ (9) $ (7) $ (6)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other income (expense) Other income (expense) Other income (expense)
Amortization of net (gains) losses   $ (1) $ 1
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other income (expense) Other income (expense) Other income (expense)
Net periodic (benefit) cost $ 2 $ 2 $ 3
Postretirement Benefits [Member] | U.S. Defined Benefit Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Interest cost 1 1  
Amortization of net (gains) losses $ (1) $ (1)  
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other income (expense) Other income (expense) Other income (expense)
Settlements or Curtailments cost     $ (1)
Net periodic (benefit) cost     (1)
Postretirement Benefits [Member] | Foreign Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Interest cost $ 1 $ 1 $ 1
Amortization of net (gains) losses $ (1)    
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other income (expense) Other income (expense) Other income (expense)
Net periodic (benefit) cost   $ 1 $ 1