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Accumulated Other Comprehensive Income (Loss)
6 Months Ended
Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income (Loss) ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Activity in Accumulated other comprehensive income (loss) for the three and six months ended March 31, 2021 and 2022 is shown below, net of income taxes: 
Three Months Ended March 31,Six Months Ended March 31,
2021 2022 2021 2022 
Foreign currency translation
   Beginning balance$(522)(701)(711)(629)
   Other comprehensive income (loss), net of tax of $(13), $(8), $6 and $(18), respectively
(20)(59)169 (131)
   Ending balance(542)(760)(542)(760)
Pension and postretirement
   Beginning balance(837)(241)(864)(259)
Amortization of deferred actuarial losses into earnings, net of tax of $(8), $(5), $(16) and $(10), respectively
27 18 54 36 
   Ending balance(810)(223)(810)(223)
Cash flow hedges
   Beginning balance29 20 (2)16 
Gains deferred during the period, net of taxes of $(2), $(5), $(13) and $(9), respectively
17 43 29 
   Reclassification of realized (gains) losses to sales and cost of sales, net of tax of $3, $4, $4 and $6, respectively
(8)(11)(11)(19)
   Ending balance30 26 30 26 
Accumulated other comprehensive income (loss)$(1,322)(957)(1,322)(957)