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v3.25.2

Write-Downs of Long-Lived Assets - Breakdowns of Recognized Impairment Losses for Difference between Carrying Amounts and Fair Values Reflected as Write-Downs of Long-Lived Assets (Detail) ¥ in Millions | 12 Months Ended
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Mar. 31, 2025 JPY (¥) Property | Mar. 31, 2024 JPY (¥) Property | Mar. 31, 2023 JPY (¥) Property
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Write-downs of the assets held for sale, amount |  | ¥ 629 | ¥ 134 | ¥ 243
Write-downs of the assets held for sale, number of properties | Property |  |  |  |
Write-downs due to decline in estimated future cash flows, amount |  | ¥ 25,304 | ¥ 1,590 | ¥ 2,054
Write-downs due to decline in estimated future cash flows, number of properties | Property |  |  |  |
Office Buildings |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Write-downs of the assets held for sale, amount |  | ¥ 0 | ¥ 0 | ¥ 0
Write-downs due to decline in estimated future cash flows, amount |  | ¥ 0 | ¥ 641 | ¥ 1,535
Write-downs due to decline in estimated future cash flows, number of properties | Property |  |  | 2 | 2
Commercial facilities other than office buildings |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Write-downs of the assets held for sale, amount |  | ¥ 0 | ¥ 0 | ¥ 0
Write-downs due to decline in estimated future cash flows, amount |  | ¥ 0 | ¥ 547 | ¥ 51
Write-downs due to decline in estimated future cash flows, number of properties | Property |  |  | 4 | 2
Condominiums |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Write-downs of the assets held for sale, amount |  | ¥ 31 | ¥ 0 | ¥ 2
Write-downs of the assets held for sale, number of properties | Property |  | 20 | 1 | 1
Write-downs due to decline in estimated future cash flows, amount |  | ¥ 0 | ¥ 30 | ¥ 15
Write-downs due to decline in estimated future cash flows, number of properties | Property |  |  | 22 | 19
Others |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Write-downs of the assets held for sale, amount | [1] | ¥ 598 | ¥ 134 | ¥ 241
Write-downs due to decline in estimated future cash flows, amount | [1] | ¥ 25,304 | ¥ 372 | ¥ 453
[1] | For the “Others”, the numbers of properties are omitted. Write-downs of long-lived assets for fiscal 2025 include write-downs of property under facility operations held by certain subsidiaries, of which ¥20,030 million related to write-downs of two coal-biomass co-fired power plants.

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- Definition Impairment of long lived assets to be disposed of due to decline in estimated future cash flows. + References No definition available. + Details
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- Definition Number Of Impaired Assets Impairment Due To Assets Held For Sale. + References No definition available. + Details
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