Acquisition Integration and Restructuring Charges (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Acquisition Integration Charges
Total business segment integration charges before income taxes	$ 7	$ 4	$ 18	$ 9
Total integration charges before income taxes	27	4	46	9
After-tax integration charges	18	2	30	6
Per common share	$ 0.05	$ 0.01	$ 0.09	$ 0.02
Electrical Americas [Member]
Acquisition Integration Charges
Total business segment integration charges before income taxes	1	3	4	7
Electrical Rest of World [Member]
Acquisition Integration Charges
Total business segment integration charges before income taxes	1	0	5	1
Hydraulics [Member]
Acquisition Integration Charges
Total business segment integration charges before income taxes	5	1	9	1
Corporate [Member]
Acquisition Integration Charges
Total integration charges before income taxes	$ 20	$ 0	$ 28	$ 0