v2.4.0.6
Pension And Other Postretirement Benefits (Long-Term Rates Of Pension And Other Postretirement Benefits) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Pension Benefits - U.S. [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.50% 6.00% 6.25%
Long-term rate of return on funded assets 7.50% 7.50% 8.00%
Long-term rate of compensation increase 5.25% 5.25% 5.00%
Service cost $ 546 $ 468 $ 438
Interest cost 792 798 809
Expected return on plan assets (769) (726) (656)
Amortization of actuarial loss/(gain) 485 525 694
Amortization of prior service cost 9 2  
Net pension enhancement and curtailment/settlement expense 286 321 485
Net periodic benefit cost 1,349 1,388 1,770
Net actuarial loss/(gain) 2,218 44 (231)
Amortization of actuarial (loss)/gain (771) (846) (1,179)
Prior service cost/(credit)   80  
Amortization of prior service (cost)/credit (9) (2)  
Total recorded in other comprehensive income 1,438 (724) (1,410)
Total recorded in net periodic benefit cost and other comprehensive income, before tax 2,787 664 360
Pension Benefits - Non-U.S. [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 4.80% 5.20% 5.50%
Long-term rate of return on funded assets 6.80% 6.70% 7.30%
Long-term rate of compensation increase 5.20% 5.00% 4.70%
Service cost 574 480 421
Interest cost 1,267 1,175 1,121
Expected return on plan assets (1,168) (1,010) (886)
Amortization of actuarial loss/(gain) 647 554 648
Amortization of prior service cost 103 84 79
Net pension enhancement and curtailment/settlement expense 34 9 2
Net periodic benefit cost 1,457 1,292 1,385
Net actuarial loss/(gain) 4,133 1,202 (33)
Amortization of actuarial (loss)/gain (681) (563) (650)
Prior service cost/(credit) 187 160 69
Amortization of prior service (cost)/credit (103) (84) (79)
Foreign exchange rate changes (90) 96 608
Total recorded in other comprehensive income 3,446 811 (85)
Total recorded in net periodic benefit cost and other comprehensive income, before tax 4,903 2,103 1,300
Other Postretirement Benefits [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.50% 6.00% 6.25%
Long-term rate of return on funded assets 7.50% 7.50% 8.00%
Long-term rate of compensation increase 5.25% 5.25% 5.00%
Service cost 121 101 94
Interest cost 393 395 408
Expected return on plan assets (41) (37) (35)
Amortization of actuarial loss/(gain) 162 147 176
Amortization of prior service cost 35 52 69
Net periodic benefit cost 670 658 712
Net actuarial loss/(gain) 468 251 (107)
Amortization of actuarial (loss)/gain (162) (147) (176)
Prior service cost/(credit)   26  
Amortization of prior service (cost)/credit (35) (52) (69)
Foreign exchange rate changes   2 2
Total recorded in other comprehensive income 271 80 (350)
Total recorded in net periodic benefit cost and other comprehensive income, before tax $ 941 $ 738 $ 362