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Postretirement Benefits
 6 Months Ended
Dec. 31, 2011
Notes to Financial Statements [Abstract]  
Postretirement Benefits
Postretirement Benefits - The Company offers various postretirement benefits to its employees.

The components of net periodic benefit cost for defined benefit plans are as follows:
 
 
Pension Benefits
 
Other Retiree Benefits
 
Three Months Ended December 31
 
Three Months Ended December 31
Amounts in millions
2011
 
2010
 
2011
 
2010
Service cost
$
63

 
$
64

 
$
35

 
$
35

Interest cost
152

 
144

 
69

 
66

Expected return on plan assets
(142
)
 
(122
)
 
(108
)
 
(107
)
Amortization of deferred amounts
5

 
5

 
(5
)
 
(5
)
Recognized net actuarial loss
26

 
38

 
24

 
23

Gross benefit cost (credit)
104

 
129

 
15

 
12

Dividends on ESOP preferred stock
—

 
—

 
(18
)
 
(19
)
Net periodic benefit cost (credit)
$
104

 
$
129

 
$
(3
)
 
$
(7
)
  
 
Pension Benefits
 
Other Retiree Benefits
 
  Six Months Ended December 31
 
  Six Months Ended December 31
Amounts in millions
2011
 
2010
 
2011
 
2010
Service cost
$
130

 
$
126

 
$
71

 
$
70

Interest cost
309

 
284

 
138

 
131

Expected return on plan assets
(288
)
 
(241
)
 
(216
)
 
(215
)
Amortization of deferred amounts
11

 
9

 
(10
)
 
(10
)
Recognized net actuarial loss
52

 
75

 
49

 
47

Gross benefit cost (credit)
214

 
253

 
32

 
23

Dividends on ESOP preferred stock
—

 
—

 
(37
)
 
(39
)
Net periodic benefit cost (credit)
$
214

 
$
253

 
$
(5
)
 
$
(16
)


For the year ending June 30, 2012, the expected return on plan assets is 7.4% and 9.2% for defined benefit and other retiree benefit plans, respectively.