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EQUITY - Changes in Shareholders's Equity (Details) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Jan. 01, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Balance at December 31, 2017 $ 17,290    
Cumulative-effect adjustment upon adoption of ASU 2014-09 (2)    
Cumulative-effect adjustment upon adoption of ASU 2016-16 (199)    
Net income (loss) 487 $ 434  
Other comprehensive income 296 $ 263  
Cash dividends paid and accrued (290)    
Issuance of shares under equity-based compensation plans - net 17    
Repurchase of shares (300)    
Changes in noncontrolling interest - net 2    
Balance at March 31, 2018 17,301    
Parent [Member]      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Balance at December 31, 2017 17,253    
Cumulative-effect adjustment upon adoption of ASU 2014-09 (2)    
Cumulative-effect adjustment upon adoption of ASU 2016-16 (199)    
Net income (loss) 488    
Other comprehensive income 296    
Cash dividends paid and accrued (290)    
Issuance of shares under equity-based compensation plans - net 17    
Repurchase of shares (300)    
Changes in noncontrolling interest - net 0    
Balance at March 31, 2018 17,263    
Noncontrolling Interest [Member]      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Balance at December 31, 2017 37    
Cumulative-effect adjustment upon adoption of ASU 2014-09 0    
Cumulative-effect adjustment upon adoption of ASU 2016-16 0    
Net income (loss) (1)    
Other comprehensive income 0    
Cash dividends paid and accrued 0    
Issuance of shares under equity-based compensation plans - net 0    
Repurchase of shares 0    
Changes in noncontrolling interest - net 2    
Balance at March 31, 2018 $ 38    
2016 Program [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Ordinary shares purchased (in shares) 3.7 3.6  
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Repurchase of shares $ (300) $ (255)  
Accounting Standards Update 2016-16 [Member]      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Cumulative-effect adjustment upon adoption of ASU 2014-09     $ 199