XML 58 R27.htm IDEA: XBRL DOCUMENT v2.4.0.6
Postretirement Benefits - Components of the Net Periodic Benefit Cost (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Pension Benefits
       
Service Cost $ 63 $ 64 $ 130 $ 126
Interest Cost 152 144 309 284
Expected Return on Plan Assets (142) (122) (288) (241)
Amortization of Deferred Amounts 5 5 11 9
Recognized Net Actuarial Loss 26 38 52 75
Gross Benefit Cost (Credit) 104 129 214 253
Dividends on ESOP Preferred Stock 0 0 0 0
Net Periodic Benefit Cost (Credit) 104 129 214 253
Other Retiree Benefits
       
Service Cost 35 35 71 70
Interest Cost 69 66 138 131
Expected Return on Plan Assets (108) (107) (216) (215)
Amortization of Deferred Amounts (5) (5) (10) (10)
Recognized Net Actuarial Loss 24 23 49 47
Gross Benefit Cost (Credit) 15 12 32 23
Dividends on ESOP Preferred Stock (18) (19) (37) (39)
Net Periodic Benefit Cost (Credit) $ (3) $ (7) $ (5) $ (16)