Rationalization Of Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Sep. 30, 2011
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	$ 23	$ 17
Rationalization of operations, liability	29		30
Rationalization of operations, paid/utilized during the period	24
Expected fiscal year rationalization expense	125
Severance And Benefits [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	12
Rationalization of operations, liability	24		24
Rationalization of operations, paid/utilized during the period	12
Lease And Other Contract Terminations [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	3
Rationalization of operations, liability	3		3
Rationalization of operations, paid/utilized during the period	3
Fixed Asset Write-Downs [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	0
Rationalization of operations, liability	0		0
Rationalization of operations, paid/utilized during the period	0
Vacant Facility And Other Shutdown Costs [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	2
Rationalization of operations, liability	2		2
Rationalization of operations, paid/utilized during the period	2
Start-Up And Moving Costs [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	6
Rationalization of operations, liability	0		1
Rationalization of operations, paid/utilized during the period	7
Process Management [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	5	2
Industrial Automation [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	4	5
Network Power [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	10	5
Climate Technologies [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	2	4
Tools And Storage [Member]
Rationalization Of Operations [Line Items]
Rationalization of operations, expense	$ 2	$ 1