XML 226 R128.htm IDEA: XBRL DOCUMENT v3.23.1
Investments - Market value of investments listed in regulated stock markets (Details) - EUR (€)
€ / shares in Units, € in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Investments      
Book value € 12,092 € 5,887 € 6,749
Joint ventures      
Investments      
Book value € 7,065 € 2,057  
Joint ventures | Var Energi ASA      
Investments      
% of the investment in joint venture   69.85%  
Book value   € 645  
Joint ventures | Saipem SpA      
Investments      
% of the investment in joint venture 31.20% 31.20%  
Book value € 645 € 137  
Joint ventures | Saipem SpA | Ordinary shares      
Investments      
Number of shares held 622,476,192    
% of the investment in joint venture 31.20%    
Share price € 1.1275    
Market value of joint venture € 702    
Book value 645    
Associates      
Investments      
Book value € 4,977 € 3,786  
Associates | Var Energi ASA      
Investments      
% of the investment in associate 63.08%    
Book value € 763    
Associates | Var Energi ASA | Ordinary shares      
Investments      
Number of shares held 1,574,616,035    
% of the investment in associate 63.08%    
Share price € 3.1947    
Market value of associate € 5,030    
Book value € 763