v3.20.4
Goodwill
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The changes in goodwill in 2020 and 2019 were as follows:
20202019
Balances as of January 1
Cost10,063 8,971 
Accumulated impairment(114)(114)
Book value9,949 8,857 
Changes in book value:
Acquisitions1,138 
Transfer to assets held for sale— (41)
Translation differences32 (5)
Total changes35 1,092 
Balances as of December 31
Cost - Balance10,098 10,063 
Accumulated impairment - Balance(114)(114)
Book value - Balance9,984 9,949 
No goodwill impairment charges were required to be recognized in 2020 or 2019.

The fair value of the reporting unit substantially exceeds the carrying value of the reporting unit.
See Note 3, “Acquisitions and Divestments”.