Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Estimated Future Benefit Payments (Details)

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Employee Benefit Plans - Estimated Future Benefit Payments (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Gross Payments
  
Defined Benefit Plan Disclosure [Line Items]  
2013 $ 22 [1]
2014 23 [1]
2015 23 [1]
2016 24 [1]
2017 24 [1]
2018 through 2022 117 [1]
Medicare Subsidy
  
Defined Benefit Plan Disclosure [Line Items]  
2013 (3) [1]
2014 (3) [1]
2015 (3) [1]
2016 (4) [1]
2017 (4) [1]
2018 through 2022 (17) [1]
Net Payments
  
Defined Benefit Plan Disclosure [Line Items]  
2013 19 [1]
2014 20 [1]
2015 20 [1]
2016 20 [1]
2017 20 [1]
2018 through 2022 100 [1]
Total Defined Benefit Pension Plans
  
Defined Benefit Plan Disclosure [Line Items]  
2013 182
2014 194
2015 197
2016 203
2017 207
2018 through 2022 1,102
U.S. Defined Benefit Pension Plans
  
Defined Benefit Plan Disclosure [Line Items]  
2013 132 [2]
2014 141 [2]
2015 143 [2]
2016 145 [2]
2017 146 [2]
2018 through 2022 726 [2]
Non-U.S. Defined Benefit Pension Plans
  
Defined Benefit Plan Disclosure [Line Items]  
2013 50 [3]
2014 53 [3]
2015 54 [3]
2016 58 [3]
2017 61 [3]
2018 through 2022 376 [3]
U.K. Defined Benefit Pension Plan
  
Defined Benefit Plan Disclosure [Line Items]  
Defined Benefit Plan, Expected Future Benefit Payments, Percentage of Total 47.00%
Swiss Defined Benefit Pension Plan
  
Defined Benefit Plan Disclosure [Line Items]  
Defined Benefit Plan, Expected Future Benefit Payments, Percentage of Total 15.00%
Japan Defined Benefit Pension Plan
  
Defined Benefit Plan Disclosure [Line Items]  
Defined Benefit Plan, Expected Future Benefit Payments, Percentage of Total 22.00%
Postretirement Plans
  
Defined Benefit Plan Disclosure [Line Items]  
2013 $ 19
Defined Benefit Plan, Expected Future Benefit Payments, Percentage of Total 95.00%
[1] The U.S. postretirement plan payments, net of Medicare subsidy, represent approximately 95% of the total 2013 expected postretirement benefit payments.
[2] The U.S. defined benefit pension plan payments are primarily funded under the terminated plan annuity contract.
[3] The U.K., Swiss and Japan pension plans payments represent approximately 47%, 15% and 22%, respectively, of the non-U.S. 2013 expected defined benefit pension payments.