XML 72 R54.htm IDEA: XBRL DOCUMENT v3.10.0.1
Goodwill and Intangible Assets - Changes in Goodwill and Intangible Assets (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Goodwill      
Balance at January 1 $ 21,085,000,000 $ 20,276,000,000  
Currency (658,000,000) 909,000,000  
Divestitures 0 (114,000,000)  
Acquisitions 298,000,000 15,000,000  
Asset impairments 0 0 $ 0
Other 0 (1,000,000)  
Balance at December 31 20,725,000,000 21,085,000,000 20,276,000,000
Intangible Assets, at cost      
Balance at January 1 20,057,000,000 19,319,000,000  
Currency (710,000,000) 954,000,000  
Divestitures 0 (100,000,000)  
Acquisitions 250,000,000 (7,000,000)  
Asset impairments (68,000,000) (109,000,000) (137,000,000)
Other 0 0  
Balance at December 31 $ 19,529,000,000 $ 20,057,000,000 $ 19,319,000,000