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Credit Quality of Financial Assets and the Allowance for Credit Losses - Summary of Revolving Repayment Card Loans (Detail) - JPY (¥) ¥ in Millions | Mar. 31, 2023 | Mar. 31, 2022
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Performing |  |
Details Of Financial Assets Including Revolving Repayment Card Loans [Line Items] |  |
Revolving repayment card loans | ¥ 166,392 | ¥ 169,601
Modification of collection condition by relief of contract condition | 0 | 0
Total—revolving repayment card loans | 166,392 | 169,601
Total— origination year (excluding revolving repayment card loans) | 4,518,503 | 4,519,699
Total— financial assets measured at amortized cost | 4,684,895 | 4,689,300
Non-Performing |  |
Details Of Financial Assets Including Revolving Repayment Card Loans [Line Items] |  |
Revolving repayment card loans | 1,588 | 671
Modification of collection condition by relief of contract condition | 3,655 | 3,415
Total—revolving repayment card loans | 5,243 | 4,086
Total— origination year (excluding revolving repayment card loans) | 93,608 | 102,099
Total— financial assets measured at amortized cost | ¥ 98,851 | ¥ 106,185

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