Equity and Other Equity Items - Schedule of Dividends Declared and Paid (Details) - JPY (¥) ¥ / shares in Units, ¥ in Millions |
3 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
Jun. 30, 2024 |
Dec. 31, 2023 |
Jun. 30, 2023 |
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| Equity [abstract] | |||||||
| Dividends | ¥ 158,470 | ¥ 154,763 | ¥ 155,893 | ¥ 148,041 | ¥ 148,037 | ¥ 140,475 | |
| Dividends (in JPY per share) | ¥ 100.00 | ¥ 98.00 | ¥ 98.00 | ¥ 94.00 | ¥ 94.00 | ¥ 90.00 | |
| Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners | ¥ 158,494 | ||||||
| Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share | ¥ 100.00 | ||||||
| X | ||||||||||
- Definition The amount of dividends paid by the entity on ordinary shares. [Refer: Ordinary shares [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of dividends paid per ordinary share. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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