Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Pre-Tax Amounts Included in Accumulated OCI (Details)

v2.4.0.6
Employee Benefit Plans - Pre-Tax Amounts Included in Accumulated OCI (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]    
Net Actuarial (Gain) Loss $ 6,998 $ 6,881
Transition Obligation 0 32
Prior Service Cost (Credits) 34 96
Amounts Recognized in Accumulated OCI 7,032 7,009
Qualified Pension Plans [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Net Actuarial (Gain) Loss 6,164 6,743
Transition Obligation 0 0
Prior Service Cost (Credits) 0 67
Amounts Recognized in Accumulated OCI 6,164 6,810
Nonqualified and Other Pension Plans [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Net Actuarial (Gain) Loss 718 409
Transition Obligation 0 0
Prior Service Cost (Credits) 0 (7)
Amounts Recognized in Accumulated OCI 718 402
Postretirement Health and Life Plans [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Net Actuarial (Gain) Loss (28) (59)
Transition Obligation 0 32
Prior Service Cost (Credits) 29 33
Amounts Recognized in Accumulated OCI 1 6
Non-U.S. Pension Plans [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Net Actuarial (Gain) Loss 144 (212)
Transition Obligation 0 0
Prior Service Cost (Credits) 5 3
Amounts Recognized in Accumulated OCI $ 149 $ (209)