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Postretirement Benefits (Tables) - Postretirement Benefits [Member]
 12 Months Ended
Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]  
Discount Rate
The actuarial present value of benefit obligations summarized below was based on the following assumption:
 
2015
 
2014
Weighted-average assumption as of June 30
 
 
 
Discount rate
4.12
%
 
4.02
%
Net Periodic Benefit Costs Assumptions
The net periodic benefit costs were determined utilizing the following beginning-of-the-year assumptions:
 
2015
 
2014
 
2013
Discount rate
4.02
%
 
4.57
%
 
3.78
%
Health care cost trend rate - pre-Medicare eligible claims
7.50
%
 
8.00
%
 
10.00
%
Health care cost trend rate - Medicare eligible claims
6.75
%
 
7.00
%
 
7.00
%
Schedule Of Change In Benefit Obligation
 
2015
 
2014
Change in benefit obligation
 
 
 
Benefit obligation at beginning of year
$
2,779

 
$
2,934

Service cost
32

 
31

Interest cost
108

 
130

Actuarial loss (gain)
155

 
(31
)
Curtailment gain
—

 
(161
)
Plan participant contributions
49

 
53

Benefits paid
(148
)
 
(177
)
Benefit obligation at end of year
$
2,975

 
$
2,779
Schedule Of Change In Plan Assets
 
2015
 
2014
Change in plan assets
 
 
 
Employer contributions
$
99

 
$
124

Plan participant contributions
49

 
53

Benefits paid
(148
)
 
(177
)
Fair value of plan assets at end of year
$
—

 
$
—
Schedule Of Reconciliation Of Funded Status
 
2015
 
2014
Reconciliation of funded status
 
 
 
Net accrued benefit cost
$
(2,975
)
 
$
(2,779
)
Schedule Of Amounts Recognized In The Consolidated Balance Sheets
 
2015
 
2014
Amounts recognized in the consolidated balance sheets consist of
 
 
 
Current accrued benefit liability
$
(169
)
 
$
(171
)
Noncurrent accrued benefit liability
$
(2,806
)
 
$
(2,608
)
Schedule Of Accumulated Benefit Obligation
 
2015
 
2014
Accumulated benefit obligation
$
2,975

 
$
2,779
Amounts Recognized In Accumulated Other Comprehensive Loss
Amounts recognized in accumulated other comprehensive loss at June 30 were as follows:
 
2015
 
2014
Net actuarial gain
$
(605
)
 
$
(788
)
Prior service benefit
(8
)
 
(13
)
Income taxes
226

 
296

Total
$
(387
)
 
$
(505
)
Amounts In Accumulated Other Comprehensive Loss Expected To Be Recognized As Components Of Net Periodic Benefit Cost During Next Fiscal Year
Amounts in accumulated other comprehensive loss expected to be recognized as components of net periodic benefit cost during the next fiscal year are as follows:
 
2016
Prior service asset amortization
$
(5
)
Unrecognized gain amortization
(17
)
Total
$
(22
)
Components Of Net Periodic Benefit Cost (Income)
The following table summarizes the components of net periodic benefit cost (income) for our postretirement plans at June 30:
 
2015
 
2014
 
2013
Components of net periodic benefit cost (income)
 
 
 
 
 
Service cost
$
32

 
$
31

 
$
31

Interest cost
108

 
130

 
113

Curtailment benefit
—

 
(161
)
 
—

Amortization of unrecognized net gain
(28
)
 
(27
)
 
(22
)
Amortization of prior service asset
(5
)
 
(5
)
 
(5
)
Net periodic benefit cost (income)
$
107

 
$
(32
)
 
$
117
Benefit Payments Estimated For Future Years
Benefit payments estimated for future years are as follows:
 
 
2016
$
169

2017
$
160

2018
$
168

2019
$
175

2020
$
182

2021 - 2025
$
923
Schedule Of Health Care Cost Trend Rates
The following table summarizes the health care costs trend assumptions for other postretirement benefit measurement purposes:
 
2015
 
2014
Pre-Medicare eligible claims:
 
 
 
Health care cost trend rate assumed for next fiscal year
7.50
%
 
7.50
%
Ultimate health care cost trend rate
5.00
%
 
5.00
%
Year that rate reaches ultimate trend rate
2024

 
2021

 
 
 
 
Medicare eligible claims:
 
 
 
Health care cost trend rate assumed for next fiscal year
8.00
%
 
6.75
%
Ultimate health care cost trend rate
5.00
%
 
5.00
%
Year that rate reaches ultimate trend rate
2024

 
2021
Schedule Of Effect Of One-Percentage-Point Change In Assumed Health Care Cost Trend Rates
Assumed health care cost rates can have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in assumed health care cost trend rates would have the following effect:
 
1-Percentage-Point
Increase
 
1-Percentage-Point
Decrease
Effect on total of service and interest cost components
$
10

 
$
(8
)
Effect on postretirement benefit obligation as of June 30, 2015
$
233

 
$
(203
)