v3.26.1
Impairment of non-financial assets - Additional Information (Detail)
¥ in Millions
 12 Months Ended
Mar. 31, 2026
JPY (¥)
Disclosure of impairment loss and reversal of impairment loss [line items]  
Pre-tax discount rate 13.00%
Impairment loss recognised in profit or loss, goodwill ¥ 17,430
Bungie Inc [Member]  
Disclosure of impairment loss and reversal of impairment loss [line items]  
Impairment loss recognised in profit or loss, property, plant and equipment 11,309
Impairment loss recognised in profit or loss, right-of-use assets 14,266
Impairment loss recognised in profit or loss, intangible assets other than goodwill 39,737
Pixo Holdings Inc [Member]  
Disclosure of impairment loss and reversal of impairment loss [line items]  
Impairment loss recognised in profit or loss, property, plant and equipment 5,171
Impairment loss recognised in profit or loss, right-of-use assets 640
Impairment loss recognised in profit or loss, intangible assets other than goodwill 1,944
Recoverable amount of asset or cash-generating unit 0
Impairment loss recognised in profit or loss, goodwill 14,355
Cost of sales [member] | Bungie Inc [Member]  
Disclosure of impairment loss and reversal of impairment loss [line items]  
Impairment losses 54,750
Other Operating Income Expenses [Member] | Bungie Inc [Member]  
Disclosure of impairment loss and reversal of impairment loss [line items]  
Impairment losses 65,312
Other Operating Income Expenses [Member] | Pixo Holdings Inc [Member]  
Disclosure of impairment loss and reversal of impairment loss [line items]  
Impairment losses ¥ 22,110