Accrued Liabilities (Tables)

3 Months Ended

Sep. 30, 2017

Accrued Liabilities, Current [Abstract]

Schedule of accrued liabilities

Accrued liabilities consisted of the following as of September 30, 2017 and June 30, 2017:

($ in millions)	September 30, 2017		June 30, 2017
Accrued compensation and benefits	$	43.3	$	59.1
Accrued postretirement benefits	15.5		15.5
Deferred revenue	10.2		9.8
Derivative financial instruments	5.8		13.1
Accrued interest expense	5.6		11.2
Accrued income taxes	4.8		5.1
Accrued pension liabilities	3.3		3.3
Other	22.3		22.8
Total accrued liabilities	$	110.8	$	139.9