XML 190 R144.htm IDEA: XBRL DOCUMENT v3.24.0.1
Consolidated shareholders’ equity - Summary of Stock Options Outstanding at Each Balance Sheet Date (Details) - Total stock option plans
€ / shares in Units, € in Millions
 12 Months Ended
Dec. 31, 2023
EUR (€)
shares
€ / shares
Dec. 31, 2022
EUR (€)
shares
€ / shares
Dec. 31, 2021
EUR (€)
shares
€ / shares
Dec. 31, 2020
EUR (€)
shares
€ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Number of options, beginning balance (in shares) | shares 1,837,969 2,337,968 2,579,270  
Number of options, options exercisable (in shares) | shares 1,333,013 1,624,569 1,949,184 1,845,050
Number of options, options exercised (in shares) | shares (504,956) (490,373) (190,076)  
Number of options, options cancelled (in shares) | shares   (9,626) (51,216)  
Number of options, options forfeited (in shares) | shares     (10)  
Number of options, ending balance (in shares) | shares 1,333,013 1,837,969 2,337,968 2,579,270
Average exercise price per share, beginning balance (in euros per share) | € / shares € 78.64 € 77.13 € 75.61  
Average exercise price per share, options exercisable (in euros per share) | € / shares 80.53 78.89 78.15 € 74.51
Average exercise price per share, options exercised (in euros per share) | € / shares 73.65 71.39 59.53  
Average exercise price per share, options cancelled (in euros per share) | € / shares   80.56 65.84  
Average exercise price per share, options forfeited (in euros per share) | € / shares     50.48  
Average exercise price per share, ending balance (in euros per share) | € / shares € 80.53 € 78.64 € 77.13 € 75.61
Total, beginning balance | € € 145 € 180 € 195  
Total, options exercisable | € 107 128 152 € 137
Total, options exercised | € (37) (35) (11)  
Total, options cancelled | €   (1) (3)  
Total, options forfeited | €     0  
Total, ending balance | € € 107 € 145 € 180 € 195