Short-term Debt	6 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Short-term Debt	Short-term DebtOur Short-term debt as of March 31, 2022, and September 30, 2021, includes $617.0 million and $484.0 million, respectively, of commercial paper borrowings with weighted average interest rates of 0.49 percent and 0.18 percent, respectively. Also included in Short-term debt as of March 31, 2022, 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.