Transactions with Total and Total Energies SE - Affiliation Agreement (Details)	12 Months Ended
	Jan. 02, 2022	Oct. 29, 2021 director member	Apr. 19, 2021 member
TotalEnergies
Related Party Transaction [Line Items]
Ownership after sale of stock, percentage	51.00%
Standstill Agreements | TotalEnergies
Related Party Transaction [Line Items]
Ownership after sale of stock, percentage	15.00%
Limitations on transfer of outstanding shares, percentage	0.40
Standstill Agreements | TotalEnergies | Maximum | Sunpower Acquisition by Total
Related Party Transaction [Line Items]
Percentage of voting interests acquired in business acquisition	100.00%
April Affiliation Agreement Amendment
Related Party Transaction [Line Items]
Number of board members			11
April Affiliation Agreement Amendment | Director
Related Party Transaction [Line Items]
Number of board members not designated by total			3
April Affiliation Agreement Amendment | TotalEnergies | Director
Related Party Transaction [Line Items]
Number of board members designated by total			6
October Affiliation Agreement Amendment
Related Party Transaction [Line Items]
Number of board members		11
Independent directors | director		1
Remaining number of members		9
Number of members resigned, designated by total | director		1
October Affiliation Agreement Amendment | Director
Related Party Transaction [Line Items]
Additional independent directors resigned | director		1