v3.26.1
Basis of Presentation (Details)
$ / shares in Units, £ in Millions, $ in Millions
6 Months Ended
Jan. 02, 2026
GBP (£)
shares
Sep. 27, 2024
$ / shares
shares
Mar. 27, 2026
USD ($)
$ / shares
Jan. 02, 2026
$ / shares
Sep. 26, 2025
$ / shares
Business Combination [Line Items]          
Common stock, par value (in dollars per share) | $ / shares   $ 1.00 $ 1   $ 1
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | SpinCo Business          
Business Combination [Line Items]          
Common stock, par value (in dollars per share) | $ / shares   $ 0.01      
Stock issued during period, spinoff transaction ( in shares) | shares   124,084,108      
Shares issued during period, spinoff, conversion ratio (in shares) | shares   1      
PA Consulting Group Limited          
Business Combination [Line Items]          
Consideration transferred | £ £ 1,210.0        
Consideration paid in cash £ 997.6   $ 123.9    
Business combination share issued (in shares) | shares 2,043,537        
Common stock, par value (in dollars per share) | $ / shares       $ 1.00  
Business combination, additional consideration deferred, estimated equity value | £ £ 75.0