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Other Assets (Tables)
 3 Months Ended
Dec. 31, 2021
Other Assets, Noncurrent [Abstract]  
Schedule of Other Assets
Other assets are summarized as follows (in millions):
December 31,
2021		September 30,
2021
Prepaid pension costs$199 $191 
Deferred income tax assets41 42 
Investments in non-consolidated joint ventures 129 132 
Other259 263 
Other assets$628 $628