XML 478 R94.htm IDEA: XBRL DOCUMENT v3.21.1
Shareholders' equity and share-based payments - Expense (Details)
$ in Millions
12 Months Ended
Jun. 11, 2020
€ / shares
shares
Jun. 06, 2019
€ / shares
shares
May 03, 2018
€ / shares
shares
Dec. 31, 2020
€ / shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Share-based payments              
Share-based expense         $ 214 $ 233 $ 315
TOTAL performance share plans              
Share-based payments              
Share-based expense         176 180 264
SunPower Plans              
Share-based payments              
Share-based expense         26 26 21
Capital increase reserved for employees              
Share-based payments              
Share-based expense         $ 12 $ 27 $ 30
Assumptions used for the valuation of the cost of the capital              
Reference price | € / shares       € 32.75      
Subscription price | € / shares € 26.20 € 40.10 € 37.20 € 26.20      
Number of shares | shares 12,952,925 9,845,111 9,174,817   13,160,000    
Risk-free interest rate (as a percent)         (0.392%)    
Employees loan financing rate (as a percent)         4.73%    
Non-transferability cost (as a percent)         19.27%    
Trading period to determine subscription price         20 days    
Subscription price discount (as a percent)         20.00%    
Consumer's credit rate term for employees loan financing rate         5 years