Acquisition Integration and Restructuring Charges (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Acquisition Integration Charges
Total business segment integration charges before income taxes	$ 16	$ 2	$ 19	$ 5
After-tax integration charges	10	2	12	4
Per common share	$ 0.03	$ 0.00	$ 0.04	$ 0.01
Electrical Americas [Member]
Acquisition Integration Charges
Total business segment integration charges before income taxes	2	1	3	4
Electrical Rest of World [Member]
Acquisition Integration Charges
Total business segment integration charges before income taxes	3	1	4	1
Hydraulics [Member]
Acquisition Integration Charges
Total business segment integration charges before income taxes	$ 3	$ 0	$ 4	$ 0