v3.26.1
REVENUE - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 26, 2026
Mar. 31, 2026
Disaggregation of Revenue [Line Items]    
Contract with customer, liability $ 441 $ 431
Location, Statement of Financial Position, Balance [Axis]: flex:DeferredRevenueAndCustomerWorkingCapitalAdvances    
Disaggregation of Revenue [Line Items]    
Deferred revenue $ 370 $ 362
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | One Customer    
Disaggregation of Revenue [Line Items]    
Concentration risk, percentage 12.00%