Business realignment charges - Work Force Reductions by Business Segment (Details)	3 Months Ended		6 Months Ended
	Dec. 31, 2012 employee	Dec. 31, 2011 employee	Dec. 31, 2012 employee	Dec. 31, 2011 employee
Industrial segment [Member]
Realignment charges [Line Items]
Realignment charges, number of positions eliminated	167	33	318	204
Climate and industrial controls [Member]
Realignment charges [Line Items]
Realignment charges, number of positions eliminated	29	0	30	4
Other Expense [Member]
Realignment charges [Line Items]
Realignment charges, number of positions eliminated	98