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Consolidated statement of changes in equity - USD ($)
$ in Millions
Total
Share capital [member]
Other reserves [member]
Former parent net investment [member]
Fair value adjustments on marketable securities [member]
Fair value adjustments on equity securities [member]
Actuarial losses/gain from defined benefit plans [member]
Cumulative currency translation effects [member]
Total value adjustments [member]
Beginning balance (Previously stated [member]) at Dec. 31, 2017 $ 23,029 [1] $ 0 $ 0 $ 22,942 [1] $ 25 $ 0 $ (25) $ 87 $ 87 [2]
Beginning balance (Impact of change in accounting policies [member]) at Dec. 31, 2017 [3] 0 [1]     25 [1] (25)       (25) [2]
Beginning balance at Dec. 31, 2017 23,029 [1] 0 0 22,967 [1] 0 0 (25) 87 62 [2]
Net (loss) [1] (227)     (227)          
Other comprehensive (loss) (73) [1]         (23) 8 (58) (73) [2]
Total comprehensive (loss) (300) [1]     (227) [1]   (23) 8 (58) (73) [2]
Movements of financing provided to former parent, net [1] (119)     (119)          
Other transactions with former parent [1] 27     27          
Other movements [1],[4] 2     2          
Total other movements [1] (90)     (90)          
Ending balance at Dec. 31, 2018 22,639 [1] 0 0 22,650 [1] 0 (23) (17) 29 (11) [2]
Net (loss) (656) [1]   (547) (109) [1]          
Other comprehensive (loss) (61) [1]         (2) (55) (4) (61) [2]
Total comprehensive (loss) (717) [1]   (547) (109) [1]   (2) (55) (4) (61) [2]
Movements of financing provided to former parent, net [1] (2,658)     (2,658)          
Other transactions with former parent [1] (46)     (46)          
Reclassification of deferred equity-compensation [1] (7)     (7)          
Distribution by former parent of share capital 0 [1] 20 19,812 (19,832) [1]          
Equity-based compensation 87 [1]   87            
Other movements [4] 5 [1]   3 2 [1]          
Total other movements (2,619) [1] 20 19,902 (22,541) [1]          
Ending balance at Dec. 31, 2019 19,303 [1] 20 19,355 0 [1] 0 (25) (72) 25 (72) [2]
Net (loss) (531) [1]   (531)            
Other comprehensive (loss) (2) [1]         (7) (14) 19 (2) [2]
Total comprehensive (loss) (533) [1]   (531)     (7) (14) 19 (2) [2]
Equity-based compensation 70 [1]   70            
Other movements (18) [1],[4]   5 [4]       (23) [4]   (23)
Total other movements 52 [1]   75       (23)   (23) [2]
Ending balance at Dec. 31, 2020 $ 18,822 [1] $ 20 $ 18,899 $ 0 [1] $ 0 $ (32) $ (109) $ 44 $ (97) [2]
[1] For periods prior to the Spin-off "Former parent net investment" and "Equity" were presented as "Retained earnings" and "Invested capital", respectively, and were renamed upon the execution of the Spin-off.
[2] "Total value adjustments" are presented net of the corresponding tax effects.
[3] The impact of change in accounting policies includes $25 million relating to IFRS 9 implementation and nil relating to IFRS 15 implementation
[4]     Activity includes hyperinflationary accounting (see Note 3 to the Consolidated Financial Statements) and an adjustment to actuarial (losses) for other post-employment benefit obligation assumption changes directly related to the Spin-off on April 9, 2019 but which was not recorded at that time.