Quarterly report pursuant to Section 13 or 15(d)

Pension and Postretirement Plans (Details)

v2.4.0.6
Pension and Postretirement Plans (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Restricted Stock Units (RSUs) [Member]
    
Pensions And Postretirement Benefits (Textuals) [Abstract]    
Restricted Stock Units Authorized To Be Converted to Common Stock Upon Vesting 2  
Key Associate Stock Plan [Member]
    
Pensions And Postretirement Benefits (Textuals) [Abstract]    
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures 183  
Qualified Pension Plans [Member]
    
Net Periodic benefit cost (income)    
Service cost $ 0 $ 114
Interest cost 151 172
Expected return on plan assets (253) (309)
Amortization of transition obligation   0
Amortization of prior service cost (credits) 0 5
Amortization of net actuarial loss (gain) 71 123
Recognized loss due to settlements and curtailments 17 58
Net periodic benefit cost (income) (14) 163
Nonqualified and Other Pension Plans [Member]
    
Net Periodic benefit cost (income)    
Service cost 0 [1] 0 [1]
Interest cost 30 [1] 35 [1]
Expected return on plan assets (27) [1] (38) [1]
Amortization of transition obligation   0 [1]
Amortization of prior service cost (credits) 0 [1] (2) [1]
Amortization of net actuarial loss (gain) 6 [1] 3 [1]
Recognized loss due to settlements and curtailments 0 [1] 3 [1]
Net periodic benefit cost (income) 9 [1] 1 [1]
Pensions And Postretirement Benefits (Textuals) [Abstract]    
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year 103  
Contribution made under group annuity contract 39  
Postretirement Health and Life Plans [Member]
    
Net Periodic benefit cost (income)    
Service cost 4 4
Interest cost 13 18
Expected return on plan assets (1) (2)
Amortization of transition obligation   8
Amortization of prior service cost (credits) 1 1
Amortization of net actuarial loss (gain) (5) (5)
Recognized loss due to settlements and curtailments 0 0
Net periodic benefit cost (income) 12 24
Pensions And Postretirement Benefits (Textuals) [Abstract]    
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year 107  
Contribution made under group annuity contract 27  
Non-U.S. Pension Plans [Member]
    
Net Periodic benefit cost (income)    
Service cost 9 10
Interest cost 25 24
Expected return on plan assets (32) (34)
Amortization of transition obligation   0
Amortization of prior service cost (credits) 0 0
Amortization of net actuarial loss (gain) 1 (2)
Recognized loss due to settlements and curtailments (7) 0
Net periodic benefit cost (income) (4) (2)
Pensions And Postretirement Benefits (Textuals) [Abstract]    
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year 105  
Contribution made under group annuity contract $ 78  
[1] Includes nonqualified pension plans and the terminated Merrill Lynch U.S. pension plan.