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Revenue - Extended Protection Plans (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 31, 2025
Nov. 01, 2024
Oct. 31, 2025
Nov. 01, 2024
Jan. 31, 2025
Revenue from Contract with Customer [Abstract]          
Deferred revenue - Lowe's protection plans $ 1,273 $ 1,260 $ 1,273 $ 1,260 $ 1,268
Lowe’s protection plans deferred revenue recognized into sales 144 141 430 420  
Lowe’s protection plans claim expenses $ 63 $ 54 $ 182 $ 158