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Goodwill and Intangible Assets
 9 Months Ended
Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
The following table sets forth the changes in the carrying amounts of goodwill by reportable segment:
(In millions)Multicloud ServicesApps & Cross PlatformOpenStack Public CloudTotal Consolidated
Balance as of December 31, 2020 (1)
$2,386.0 $322.6 $52.5 $2,761.1 
Foreign currency translation(1.4)(0.1)(0.1)(1.6)
Balance as of September 30, 2021
$2,384.6 $322.5 $52.4 $2,759.5 
(1)    Multicloud Services had accumulated impairment charges of $295.0 million as of December 31, 2020.

The following table provides information regarding our intangible assets other than goodwill:
December 31, 2020September 30, 2021
(In millions)Gross carrying amountAccumulated amortizationNet carrying amountGross carrying amountAccumulated amortizationNet carrying amount
Customer relationships$1,986.2 $(624.0)$1,362.2 $1,983.0 $(743.6)$1,239.4 
Property tax abatement 16.0 (7.4)8.6 16.0 (8.7)7.3 
Other47.7 (22.2)25.5 28.2 (16.1)12.1 
Total definite-lived intangible assets2,049.9 (653.6)1,396.3 2,027.2 (768.4)1,258.8 
Trade name (indefinite-lived)250.0 — 250.0 250.0 — 250.0 
Total intangible assets other than goodwill$2,299.9 $(653.6)$1,646.3 $2,277.2 $(768.4)$1,508.8