XML 280 R67.htm IDEA: XBRL DOCUMENT v3.20.1
Intangible and tangible assets - Change in net intangible assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Analysis of change in net intangible assets      
Net amount as of the beginning of the period $ 28,922 $ 14,587 $ 15,362
Expenditures 1,087 3,745 404
Disposals (118) (28) (23)
Amortization and impairment (1,359) (852) (1,512)
Currency translation adjustment (95) (351) 234
Other 4,741 11,821 122
Net amount as of the end of the period 33,178 28,922 14,587
Exceptional asset impairments 251 67 $ 785
Effect of entries in the consolidation scope $ 3,887 $ 12,044