v3.8.0.1
EQUITY - AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Balance     $ 7,343 $ 6,652
Balance $ 7,750 $ 7,277 7,750 7,277
Foreign Exchange Translation Adjustment        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Balance (5,618) (5,462) (5,734) (6,443)
Other comprehensive income (loss) before reclassifications 329 (95) 445 886
Amount reclassified from accumulated other comprehensive income 0 0 0 0
Balance (5,289) (5,557) (5,289) (5,557)
Deferred Gains (Losses) on Hedging Activities        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Balance (192) (125) (102) 214
Other comprehensive income (loss) before reclassifications (37) 0 (108) (339)
Amount reclassified from accumulated other comprehensive income (8) (13) (27) (13)
Balance (237) (138) (237) (138)
Pension and Other Postretirement Liability Adjustments        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Balance (145) (134) (145) (134)
Other comprehensive income (loss) before reclassifications 9 1 9 1
Amount reclassified from accumulated other comprehensive income 0 0 0 0
Balance (136) (133) (136) (133)
Unrealized Gains (Losses) on Investments        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Balance 4 3 3 3
Other comprehensive income (loss) before reclassifications 0 0 1 0
Amount reclassified from accumulated other comprehensive income (4) 0 (4) 0
Balance 0 3 0 3
Accumulated Other Comprehensive Income (Loss)        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Balance (5,951) (5,718) (5,978) (6,360)
Other comprehensive income (loss) before reclassifications 301 (94) 347 548
Amount reclassified from accumulated other comprehensive income (12) (13) (31) (13)
Balance $ (5,662) $ (5,825) $ (5,662) $ (5,825)