v3.25.2
Income Taxes - Narrative (Details) - JPY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Income taxes paid (refund) [abstract]        
Decrease for current tax expenses of prior periods   ¥ 4,654 ¥ 4,952 ¥ 17,529
Current tax expense (income), related to Pillar Two income taxes   317    
Increase for deferred tax benefits relating to origination and reversal of temporary differences   ¥ 19,542 ¥ 32,290 ¥ 54,974
Takeda’s domestic (Japanese) statutory tax rate 31.50% 30.60% 30.60% 30.60%
Tax contingencies   ¥ (426) ¥ 83,784 ¥ (13,991)
Current and deferred tax relating to items credited (charged) directly to equity   1,347 506  
Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax assets have not been recognised   447,645 65,232  
Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognised   ¥ 578,601 ¥ 532,960