Business realignment charges - Work Force Reductions by Business Segment (Details)	3 Months Ended		6 Months Ended
	Dec. 31, 2013 employee	Dec. 31, 2012 employee	Dec. 31, 2013 employee	Dec. 31, 2012 employee
Industrial segment [Member]
Realignment charges [Line Items]
Realignment charges, number of positions eliminated	312	196	582	348
Other Expense [Member]
Realignment charges [Line Items]
Realignment charges, number of positions eliminated		98
Aerospace Segment [Member]
Realignment charges [Line Items]
Realignment charges, number of positions eliminated	0	0	27	0