Accrued Liabilities (Tables)

9 Months Ended

Mar. 31, 2019

Accrued Liabilities, Current [Abstract]

Schedule of accrued liabilities

Accrued liabilities consisted of the following as of March 31, 2019 and June 30, 2018:

($ in millions)	March 31, 2019		June 30, 2018
Accrued compensation and benefits	$	56.3	$	83.3
Derivative financial instruments	17.3		—
Accrued postretirement benefits	15.4		15.4
Deferred revenue	12.3		10.4
Accrued income taxes	4.3		1.4
Accrued interest expense	3.9		10.4
Accrued pension liabilities	3.3		3.3
Other	25.6		24.4
Total accrued liabilities	$	138.4	$	148.6