v3.26.1
Other Comprehensive Income (Loss) (Details) - JPY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Changes in fair value of financial assets measured at fair value through OCI:      
Amounts arising during the year ¥ (6,917) ¥ (16,546) ¥ 4,365
Tax effects 1,941 4,235 (2,056)
Changes in fair value of financial assets measured at fair value through OCI (4,976) (12,311) 2,309
Remeasurement of defined benefit pension plans:      
Amounts arising during the year 2,382 (9,277) (7,172)
Tax effects (468) 2,231 2,170
Remeasurement of defined benefit pension plans 1,914 (7,046) (5,002)
Exchange differences on translation of foreign operations:      
Amounts arising during the year 851,651 (153,790) 956,254
Reclassification adjustments to profit or (loss) 0 0 0
Before tax effects 851,651 (153,790) 956,254
Tax effects 52,244 445 12,588
Exchange differences on translation of foreign operations 903,895 (153,345) 968,842
Changes in fair value of financial assets measured at fair value through OCI:      
Amounts arising during the year (14,206) (16,363) (16,150)
Reclassification adjustments to profit or (loss) 14,206 16,363 16,150
Before tax effects 0 0 0
Tax effects 0 0 0
Changes in fair value of financial assets measured at fair value through OCI 0 0 0
Cash flow hedges:      
Amounts arising during the year 111,908 3,627 171,059
Reclassification adjustments to profit or (loss) (70,433) (6,453) (137,265)
Before tax effects 41,476 (2,826) 33,794
Tax effects (12,526) 1,870 (10,338)
Cash flow hedges 28,950 (956) 23,456
Hedging cost:      
Amounts arising during the year 6,155 18,663 12,392
Reclassification adjustments to profit or (loss) (1,542) (7,350) (2,024)
Before tax effects 4,613 11,313 10,368
Tax effects (1,454) (3,350) (3,171)
Hedging cost 3,159 7,963 7,197
Share of other comprehensive loss of investments accounted for using the equity method:      
Amounts arising during the year (541) (145) (1,793)
Reclassification adjustments to profit or (loss) 0 0 0
Before tax effects (541) (145) (1,793)
Tax effects 0 0 0
Share of other comprehensive loss of investments accounted for using the equity method (541) (145) (1,793)
Other comprehensive income (loss) for the year, net of tax ¥ 932,401 ¥ (165,841) ¥ 995,009