Accrued Liabilities (Tables)

6 Months Ended

Dec. 31, 2016

Accrued Liabilities, Current [Abstract]

Schedule of accrued liabilities

Accrued liabilities consisted of the following as of December 31, 2016 and June 30, 2016:

($ in millions)	December 31, 2016		June 30, 2016
Accrued compensation and benefits	$	43.0	$	41.8
Derivative financial instruments	15.2		31.6
Accrued postretirement benefits	13.7		13.8
Accrued interest expense	11.3		11.2
Other	36.2		40.8
Total accrued liabilities	$	119.4	$	139.2