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v3.23.1

Financial Instruments Risks - Progress of LtSCD ratios (Detail) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Table Of The Progress Of LtSCD Ratios [Line Items] |  |
LtSCD | 58.00% | 58.10%
Bottom of range [member] |  |
Table Of The Progress Of LtSCD Ratios [Line Items] |  |
LtSCD | 54.60% | 52.70%
Weighted average [member] |  |
Table Of The Progress Of LtSCD Ratios [Line Items] |  |
LtSCD | 58.60% | 57.70%
Top of range [member] |  |
Table Of The Progress Of LtSCD Ratios [Line Items] |  |
LtSCD | 62.80% | 61.80%

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