Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFITS - FAIR VALUE OF PLAN ASSETS (Details 4)

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PENSION AND OTHER POSTRETIREMENT BENEFITS - FAIR VALUE OF PLAN ASSETS (Details 4) - USD ($)
$ in Millions
 1 Months Ended
Jul. 31, 2012
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
U.S. Plans        
Pension and other postretirement benefits        
Fair value of plan assets   $ 2,636 $ 2,713 $ 2,445
Pending Trade Purchases, Sales   27 (5)  
Accrued Investment Income Receivable [1]   10 9  
Fair Value of Plan Assets Measured on Recurring Basis   1,094 1,186  
U.S. Plans | Global Equities        
Pension and other postretirement benefits        
Fair Value of Plan Assets Measured on Recurring Basis   335 379  
U.S. Plans | US Treasury and Government        
Pension and other postretirement benefits        
Fair Value of Plan Assets Measured on Recurring Basis   287 307  
U.S. Plans | U.S. and non-U.S. corporate debt        
Pension and other postretirement benefits        
Fair Value of Plan Assets Measured on Recurring Basis   346 394  
U.S. Plans | Real estate        
Pension and other postretirement benefits        
Fair Value of Plan Assets Measured on Recurring Basis   119 104  
U.S. Plans | Asset-backed Securities        
Pension and other postretirement benefits        
Fair Value of Plan Assets Measured on Recurring Basis   7 2  
U.S. Plans | Fair Value, Inputs, Level 1        
Pension and other postretirement benefits        
Fair value of plan assets   268 268  
U.S. Plans | Fair Value, Inputs, Level 1 | U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   96 103  
U.S. Plans | Fair Value, Inputs, Level 1 | Non-U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   130 137  
U.S. Plans | Fair Value, Inputs, Level 1 | Cash Equivalents        
Pension and other postretirement benefits        
Fair value of plan assets [2]   42 28  
U.S. Plans | Significant other observable inputs Level 2        
Pension and other postretirement benefits        
Fair value of plan assets   1,088 1,043  
U.S. Plans | Significant other observable inputs Level 2 | US Treasury and Government        
Pension and other postretirement benefits        
Fair value of plan assets   533 579  
U.S. Plans | Significant other observable inputs Level 2 | Domestic Corporate Debt Securities        
Pension and other postretirement benefits        
Fair value of plan assets   406 346  
U.S. Plans | Significant other observable inputs Level 2 | Foreign Corporate Debt Securities        
Pension and other postretirement benefits        
Fair value of plan assets   80 71  
U.S. Plans | Significant other observable inputs Level 2 | Asset-backed Securities        
Pension and other postretirement benefits        
Fair value of plan assets   56 43  
U.S. Plans | Significant other observable inputs Level 2 | Cash Equivalents        
Pension and other postretirement benefits        
Fair value of plan assets [2]   10 2  
U.S. Plans | Significant other observable inputs Level 2 | Derivative        
Pension and other postretirement benefits        
Fair value of plan assets [3]   3 2  
U.S. Plans | Fair Value, Inputs, Level 3        
Pension and other postretirement benefits        
Fair value of plan assets   203 202 203
U.S. Plans | Fair Value, Inputs, Level 3 | Real estate        
Pension and other postretirement benefits        
Fair value of plan assets   60 54 50
U.S. Plans | Fair Value, Inputs, Level 3 | Private Equity and Real Estate        
Pension and other postretirement benefits        
Fair value of plan assets [4]   203 202  
U.S. Plans | Estimate of Fair Value Measurement        
Pension and other postretirement benefits        
Fair value of plan assets   1,559 1,513  
U.S. Plans | Estimate of Fair Value Measurement | U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   96 103  
U.S. Plans | Estimate of Fair Value Measurement | Non-U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   130 137  
U.S. Plans | Estimate of Fair Value Measurement | US Treasury and Government        
Pension and other postretirement benefits        
Fair value of plan assets   533 579  
U.S. Plans | Estimate of Fair Value Measurement | Domestic Corporate Debt Securities        
Pension and other postretirement benefits        
Fair value of plan assets   406 346  
U.S. Plans | Estimate of Fair Value Measurement | Foreign Corporate Debt Securities        
Pension and other postretirement benefits        
Fair value of plan assets   80 71  
U.S. Plans | Estimate of Fair Value Measurement | Asset-backed Securities        
Pension and other postretirement benefits        
Fair value of plan assets   56 43  
U.S. Plans | Estimate of Fair Value Measurement | Cash Equivalents        
Pension and other postretirement benefits        
Fair value of plan assets [2]   52 30  
U.S. Plans | Estimate of Fair Value Measurement | Derivative        
Pension and other postretirement benefits        
Fair value of plan assets [3]   3 2  
U.S. Plans | Estimate of Fair Value Measurement | Private Equity and Real Estate        
Pension and other postretirement benefits        
Fair value of plan assets [4]   203 202  
Non-U.S. Plans        
Pension and other postretirement benefits        
Fair value of plan assets   1,712 1,724 1,516
Fair Value of Plan Assets Measured on Recurring Basis   514 497  
Non-U.S. Plans | U.S. and non-U.S. corporate debt        
Pension and other postretirement benefits        
Fair Value of Plan Assets Measured on Recurring Basis   458 432  
Non-U.S. Plans | Reinsurance        
Pension and other postretirement benefits        
Fair Value of Plan Assets Measured on Recurring Basis   56 65  
Non-U.S. Plans | Insurance Contract        
Pension and other postretirement benefits        
Insurance Contract Payment Deferment Period 10 years      
Non-U.S. Plans | Fair Value, Inputs, Level 1        
Pension and other postretirement benefits        
Fair value of plan assets   33 24  
Non-U.S. Plans | Fair Value, Inputs, Level 1 | Cash Equivalents        
Pension and other postretirement benefits        
Fair value of plan assets [5]   33 24  
Non-U.S. Plans | Significant other observable inputs Level 2        
Pension and other postretirement benefits        
Fair value of plan assets   564 599  
Non-U.S. Plans | Significant other observable inputs Level 2 | U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   250 153  
Non-U.S. Plans | Significant other observable inputs Level 2 | Non-U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   269 399  
Non-U.S. Plans | Significant other observable inputs Level 2 | Foreign Corporate Debt Securities        
Pension and other postretirement benefits        
Fair value of plan assets   45 47  
Non-U.S. Plans | Fair Value, Inputs, Level 3        
Pension and other postretirement benefits        
Fair value of plan assets   601 604 557
Non-U.S. Plans | Fair Value, Inputs, Level 3 | Real estate        
Pension and other postretirement benefits        
Fair value of plan assets   57 61 $ 69
Non-U.S. Plans | Fair Value, Inputs, Level 3 | Private Equity Real Estate and Insurance        
Pension and other postretirement benefits        
Fair value of plan assets [6]   601 604  
Non-U.S. Plans | Fair Value, Inputs, Level 3 | Insurance Contract        
Pension and other postretirement benefits        
Fair value of plan assets   445 462  
Non-U.S. Plans | Estimate of Fair Value Measurement        
Pension and other postretirement benefits        
Fair value of plan assets   1,198 1,227  
Non-U.S. Plans | Estimate of Fair Value Measurement | U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   250 153  
Non-U.S. Plans | Estimate of Fair Value Measurement | Non-U.S. Equity        
Pension and other postretirement benefits        
Fair value of plan assets   269 399  
Non-U.S. Plans | Estimate of Fair Value Measurement | Foreign Corporate Debt Securities        
Pension and other postretirement benefits        
Fair value of plan assets   45 47  
Non-U.S. Plans | Estimate of Fair Value Measurement | Cash Equivalents        
Pension and other postretirement benefits        
Fair value of plan assets [5]   33 24  
Non-U.S. Plans | Estimate of Fair Value Measurement | Private Equity Real Estate and Insurance        
Pension and other postretirement benefits        
Fair value of plan assets [6]   $ 601 $ 604  
[1] Accruals include interest or dividends that were not settled at December 31.
[2] Cash equivalents include commercial paper, short-term government/agency, mortgage and credit instruments.
[3] Derivative instruments include interest rate swaps and credit default swaps.
[4] The instruments in private equity and real estate funds, for which quoted market prices are not available, are valued at their estimated fair value as determined by applicable investment managers or by audited financial statement of the funds.
[5] Cash equivalents include commercial paper, short-term government/agency, mortgage and credit instruments.
[6] The instruments in private equity and real estate funds, for which quoted market prices are not available, are valued at their estimated fair value as determined by applicable investment managers or by audited financial statement of the funds.