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Note 8 Unobservable inputs (Details) - vegas | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Bottom of range [member] | Debt securities [Member] | Present value method [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Credit spread | 0.00% | 0.00% | 0.03%
Recovery rate | 0.00% | 0.00% | 0.00%
Bottom of range [member] | Debt securities [Member] | Comparable pricing [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Comparable prices inputs | 0.00% | 2.00% | 0.10%
Bottom of range [member] | loans and advances [Member] | Present value method [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Repo funding curve | 2.26% | 0.71% | (2.71%)
Bottom of range [member] | Credit derivatives [Member] | Gaussian copula [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Correlation default | 26.00% | 26.00% | 35.00%
Bottom of range [member] | Credit derivatives [Member] | Black 76 [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Price volatility |  | 0 | 0
Bottom of range [member] | Equity derivatives [Member] | Option models on equities baskets of equity funds [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Correlations | (88.00%) | (93.00%) | (88.00%)
Volatility | 0.000847 | 0.000781 | 0.000557
Bottom of range [member] | FX derivatives [Member] | Option models on FX underlyings [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Volatility | 0.000431 | 0.000532 | 0.000396
Bottom of range [member] | IR derivatives [Member] | Option models on IR underlyings [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Beta (significant unobservable inputs) | (3.00%) | (0.25%) | (0.25%)
Correlation rate credit | (100.00%) | (100.00%) | (100.00%)
Credit default volatility | 0.52 | 0.51 | 0
Arithmetic Average [Member] | Debt securities [Member] | Present value method [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Credit spread | 1.36% | 1.11% | 1.25%
Recovery rate | 39.00% | 39.00% | 37.00%
Arithmetic Average [Member] | Debt securities [Member] | Comparable pricing [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Comparable prices inputs | 99.00% | 94.00% | 97.00%
Arithmetic Average [Member] | loans and advances [Member] | Present value method [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Repo funding curve | 3.74% | 3.48% | 1.16%
Arithmetic Average [Member] | Credit derivatives [Member] | Gaussian copula [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Correlation default | 60.00% | 44.00% | 43.00%
Arithmetic Average [Member] | Credit derivatives [Member] | Black 76 [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Price volatility |  | 0 | 0
Arithmetic Average [Member] | Equity derivatives [Member] | Option models on equities baskets of equity funds [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Correlations | 52.00% | 59.00% | 60.00%
Volatility | 0.002941 | 0.003262 | 0.002630
Arithmetic Average [Member] | FX derivatives [Member] | Option models on FX underlyings [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Volatility | 0.001024 | 0.001193 | 0.000971
Arithmetic Average [Member] | IR derivatives [Member] | Option models on IR underlyings [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Beta (significant unobservable inputs) | (5.00%) | (2.00%) | (2.00%)
Credit default volatility | 0.60 | 0.66 | 0
Top of range [member] | Debt securities [Member] | Present value method [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Credit spread | 43.69% | 15.38% | 23.74%
Recovery rate | 40.00% | 40.00% | 40.00%
Top of range [member] | Debt securities [Member] | Comparable pricing [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Comparable prices inputs | 237.00% | 139.00% | 144.00%
Top of range [member] | loans and advances [Member] | Present value method [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Repo funding curve | 5.76% | 5.52% | 4.99%
Top of range [member] | Credit derivatives [Member] | Gaussian copula [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Correlation default | 85.00% | 58.00% | 53.00%
Top of range [member] | Credit derivatives [Member] | Black 76 [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Price volatility |  | 0 | 0
Top of range [member] | Equity derivatives [Member] | Option models on equities baskets of equity funds [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Correlations | 99.00% | 99.00% | 99.00%
Volatility | 0.007094 | 0.009871 | 0.006200
Top of range [member] | FX derivatives [Member] | Option models on FX underlyings [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Volatility | 0.001852 | 0.002073 | 0.001634
Top of range [member] | IR derivatives [Member] | Option models on IR underlyings [Member] |  |  |
Significant unobservable inputs [Line Items] |  |  |
Beta (significant unobservable inputs) | (11.00%) | (18.00%) | (18.00%)
Correlation rate credit | 100.00% | 100.00% | 100.00%
Credit default volatility | 0.74 | 0.76 | 0

X
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- Definition Comparable prices inputs + References No definition available. + Details
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Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Correlation default + References No definition available. + Details
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- Definition Correlation rate credit + References No definition available. + Details
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- Definition Correlations + References No definition available. + Details
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- Definition Credit spread + References No definition available. + Details
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- Definition Price volatility + References No definition available. + Details
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- Definition Recovery rate + References No definition available. + Details
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Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Repo funding curve + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Significant unobservable inputs + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Volatility + References No definition available. + Details
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Data Type: | xbrli:decimalItemType
Balance Type: | na
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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