Short-term Debt	3 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Short-term Debt	Short-term DebtOur short-term debt as of December 31, 2021, and September 30, 2021, includes $580.0 million and $484.0 million, respectively, of commercial paper borrowings with weighted average interest rates of 0.20 percent and 0.18 percent, respectively. Also included in short-term debt as of December 31, 2021, and September 30, 2021, is $23.5 million of interest-bearing loans from Schlumberger to Sensia due December 31, 2022. The short-term loans from Schlumberger were entered into following the formation of Sensia in fiscal 2020.