XML 72 R57.htm IDEA: XBRL DOCUMENT v3.21.2
INTANGIBLE ASSETS - Reconciliation (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Reconciliation of changes in intangible assets other than goodwill    
Cost at beginning of the year $ 11,767  
Cost at end of year 12,406 $ 11,767
Cost    
Reconciliation of changes in intangible assets other than goodwill    
Cost at beginning of the year 13,233 15,695
Acquisitions through business combinations, intangible assets and goodwill 467 532
Additions, net of disposals 24 102
Non-cash additions, intangible assets other than goodwill 288 (2,118)
Foreign currency translation 105 (978)
Cost at end of year $ 14,117 $ 13,233