Restructuring Costs (Details) $ in Millions	3 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2022 USD ($)
Restructuring Reserve [Roll Forward]
Beginning restructuring liability	$ 176
Restructuring expense	9	$ 66
Restructuring utilized/paid	29
Ending restructuring liability	$ 156
Total number of employee workforce reductions	150
Cost of sales and selling, general, and administrative expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring expense	$ 9	3
Severance and benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning restructuring liability	172
Restructuring expense	2
Restructuring utilized/paid	20
Ending restructuring liability	154
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Beginning restructuring liability	4
Restructuring expense	7
Restructuring utilized/paid	9
Ending restructuring liability	2
Automation Solutions [Member]
Restructuring Reserve [Roll Forward]
Restructuring expense	5	64
Commercial & Residential Solutions [Member]
Restructuring Reserve [Roll Forward]
Restructuring expense	3	2
Climate Technologies [Member]
Restructuring Reserve [Roll Forward]
Restructuring expense	2	1
Tools & Home Products [Member]
Restructuring Reserve [Roll Forward]
Restructuring expense	1	1
Corporate [Member]
Restructuring Reserve [Roll Forward]
Restructuring expense	$ 1	$ 0
Forecast [Member]
Restructuring Reserve [Roll Forward]
Expected fiscal year restructuring expense			$ 150