|6 Months Ended|
Mar. 31, 2019
|Defined Benefit Plan [Abstract]|
Defined Benefit Plans
Postretirement Healthcare Plans — Net postretirement healthcare costs were not significant for the three and six months ended March 31, 2019 and 2018.
Defined Contribution Plans — Expenses related to our defined contribution plans were $2.9 and $5.7 for the three and six months ended March 31, 2019 and $2.9 and $5.6 for the same periods in the prior year.
The entire disclosure for pension and other postretirement benefits.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef