Transactions with Total and Total Energies SE - Affiliation Agreement (Details)	12 Months Ended
	Jan. 01, 2023	Sep. 26, 2022 member	Sep. 23, 2022 member	Sep. 12, 2022 director	Sep. 12, 2022 member	Oct. 29, 2021 director member	Apr. 19, 2021 member director
TotalEnergies
Related Party Transaction [Line Items]
Ownership after sale of stock, percentage	50.00%
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 | director							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						1
October Affiliation Agreement Amendment | Director
Related Party Transaction [Line Items]
Additional independent directors resigned | director						1
September Letter Agreement
Related Party Transaction [Line Items]
Number of members resigned, designated by total			2
September Letter Agreement | Global Infrastructure Partners ("GIP")
Related Party Transaction [Line Items]
Number of members appointed by GIP		2		2
September Letter Agreement | Global Infrastructure Partners ("GIP") | Director
Related Party Transaction [Line Items]
Number of members appointed by GIP				5	2