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Investments (Tables)
 12 Months Ended
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]  
Schedule of fair value investments ownership interest and carrying value
Our investments accounted for at fair value are summarized in the following table:

Fair value investments ownership interest and carrying value
Ownership InterestCarrying Value
(in millions)December 31, 2020December 31, 2019December 31, 2020December 31, 2019
Hanjin-KAL13 %10 %$512 $205 
Air France-KLM9 %9 %235 418 
China Eastern3 %3 %201 258 
Other investments469 218 
Total fair value investments$1,417 $1,099 
Schedule of equity method investments ownership interest and carrying value
We account for the investments listed below and certain other immaterial investments under the equity method of accounting.

Equity method investments ownership interest and carrying value
Ownership InterestCarrying Value
(in millions)December 31, 2020December 31, 2019December 31, 2020December 31, 2019
Virgin Atlantic (1)
49 %49 %$— $375 
Unifi Aviation49 %49 %154 142 
(1)We have a non-controlling equity stake in Virgin Atlantic Limited, the parent company of Virgin Atlantic Airways, and similar non-controlling interests in certain affiliated Virgin Atlantic companies.