v3.26.1
Goodwill and intangible assets - Summary of Carrying Amount of Goodwill by Segment (Detail) - JPY (¥)
¥ in Millions
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill ¥ 1,673,906 ¥ 1,508,721 ¥ 1,487,100
Game & Network Services [member]      
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill 487,551 460,621  
Music [member]      
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill 864,910 729,593  
Pictures [member]      
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill 285,417 283,201  
Entertainment, Technology & Services [member]      
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill 30,731 20,636  
Imaging & Sensing Solutions [member]      
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill 5,297 3,836  
Financial Services [member]      
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill 0 10,834  
All Other [member]      
Disclosure Of Detailed Information About Carrying Amount Of Goodwill By Segment [Line Items]      
Goodwill ¥ 0 ¥ 0