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PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Fair Value Measurement of Level 3 Pension Plan Assets) (Details) - Defined Benefit Pension Plans [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance $ 18,595  
Foreign currency impact (404) $ (488)
Fair value of plan assets, ending balance 21,208 18,595
Significant Unobservable Inputs (Level 3) [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 3,880 3,725
Relating to assets sold 158 251
Relating to assets held 26 47
Purchases, sales and settlements 221 (115)
Transfers into (out of) Level 3, net 1 (2)
Foreign currency impact (24) (26)
Fair value of plan assets, ending balance 4,262 3,880
Equity Securities [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 7,370  
Fair value of plan assets, ending balance 8,131 7,370
Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 28 32
Relating to assets sold 0 0
Relating to assets held 9 0
Purchases, sales and settlements 1 2
Transfers into (out of) Level 3, net (2) (6)
Foreign currency impact (2) 0
Fair value of plan assets, ending balance 34 28
Fixed Income Securities [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 6,235  
Fair value of plan assets, ending balance 7,521 6,235
Fixed Income Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 293 311
Relating to assets sold 2 18
Relating to assets held (4) (9)
Purchases, sales and settlements 202 (27)
Transfers into (out of) Level 3, net 3 (1)
Foreign currency impact 2 1
Fair value of plan assets, ending balance 498 293
Alternative Investments [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 4,064  
Fair value of plan assets, ending balance 4,403 4,064
Alternative Investments [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 3,521 3,342
Relating to assets sold 163 233
Relating to assets held 10 58
Purchases, sales and settlements (35) [1] (90)
Transfers into (out of) Level 3, net 0 5
Foreign currency impact (24) (27)
Fair value of plan assets, ending balance 3,635 3,521
Other Investments [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 288  
Fair value of plan assets, ending balance 274 288
Other Investments [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value of plan assets, beginning balance 38 40
Relating to assets sold (7) 0
Relating to assets held 11 (2)
Purchases, sales and settlements 53 0
Transfers into (out of) Level 3, net 0 0
Foreign currency impact 0 0
Fair value of plan assets, ending balance 95 $ 38
Dow Corning Corporation [Member] | Alternative Investments [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Purchases, sales and settlements [1] $ 35  
[1] Includes $35 million of alternative investments associated with the ownership restructure of Dow Corning.