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Earnings per share (Details)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Earnings per share [line items]      
Profit/loss attributable to shareholders of Novartis AG | $ $ 6,955 $ 24,021 $ 8,072
Weighted average number of shares outstanding used in the basic earnings per share 2,181 2,243 2,277
Adjustment for vesting of restricted shares, restricted share units and dilutive shares from options 16 17 19
Weighted average number of shares in diluted earnings per share 2,197 2,260 2,296
Total basic earnings per share | $ / shares $ 3.19 $ 10.71 $ 3.55
Total diluted earnings per share | $ / shares $ 3.17 $ 10.63 $ 3.52
Options excluded from the calculation 0 0 0