Annual report pursuant to Section 13 and 15(d)

COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Effects of One Basis Point Change on Projected Benefit Obligation (Details)

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COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Effects of One Basis Point Change on Projected Benefit Obligation (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Pension Plan, Defined Benefit [Member]
 
effects of one-basis point change one PBO [Line Items]  
Defined Benefit Plan, Effect of One Percentage Point Increase on Projected Benefit Obligation $ (46)
Defined Benefit Plan, Effect of One Percentage Point Decrease on Projected Benefit Obligation 49
Other Postretirement Benefit Plan, Defined Benefit [Member]
 
effects of one-basis point change one PBO [Line Items]  
Defined Benefit Plan, Effect of One Percentage Point Increase on Projected Benefit Obligation (4)
Defined Benefit Plan, Effect of One Percentage Point Decrease on Projected Benefit Obligation $ 4