Rationalization Of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2016
Restructuring Reserve [Roll Forward]
Beginning rationalization of operations liability	$ 112
Rationalization of operations, expense	13	$ 9
Rationalization of operations, paid	53
Ending rationalization of operations liability	72
Severance and benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning rationalization of operations liability	105
Rationalization of operations, expense	6
Rationalization of operations, paid	46
Ending rationalization of operations liability	65
Lease and other contract terminations [Member]
Restructuring Reserve [Roll Forward]
Beginning rationalization of operations liability	1
Rationalization of operations, expense	1
Rationalization of operations, paid	1
Ending rationalization of operations liability	1
Vacant facility and other shutdown costs [Member]
Restructuring Reserve [Roll Forward]
Beginning rationalization of operations liability	3
Rationalization of operations, expense	2
Rationalization of operations, paid	2
Ending rationalization of operations liability	3
Start-up and moving costs [Member]
Restructuring Reserve [Roll Forward]
Beginning rationalization of operations liability	3
Rationalization of operations, expense	4
Rationalization of operations, paid	4
Ending rationalization of operations liability	3
Process Management [Member]
Restructuring Reserve [Roll Forward]
Rationalization of operations, expense	4	3
Industrial Automation [Member]
Restructuring Reserve [Roll Forward]
Rationalization of operations, expense	3	2
Network Power [Member]
Restructuring Reserve [Roll Forward]
Rationalization of operations, expense	4	1
Climate Technologies [Member]
Restructuring Reserve [Roll Forward]
Rationalization of operations, expense	1	2
Commercial & Residential Solutions [Member]
Restructuring Reserve [Roll Forward]
Rationalization of operations, expense	$ 1	$ 1
Minimum [Member] | Scenario, Forecast [Member]
Restructuring Reserve [Roll Forward]
Expected fiscal year rationalization expense			$ 60
Maximum [Member] | Scenario, Forecast [Member]
Restructuring Reserve [Roll Forward]
Expected fiscal year rationalization expense			$ 70