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Risk management - Quantitative SICR thresholds (Details) | Jun. 30, 2024 | Dec. 31, 2023
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Mortgages | Investment grade (rating grade 1-10) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 2.6 | 2.5
Mortgages | Non-investment grade (rating grade 11-17) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 2.3 | 2.3
Consumer Lending | Investment grade (rating grade 1-10) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 2.9 | 2.9
Consumer Lending | Non-investment grade (rating grade 11-17) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 2.2 | 2.1
Business Lending | Investment grade (rating grade 1-10) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 2.7 | 2.7
Business Lending | Non-investment grade (rating grade 11-17) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 2.1 | 2.1
Governments and fin. institutions | Investment grade (rating grade 1-10) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 3.0 | 3.0
Governments and fin. institutions | Non-investment grade (rating grade 11-17) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 1.8 | 1.9
Other Wholesale Banking | Investment grade (rating grade 1-10) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 2.7 | 2.8
Other Wholesale Banking | Non-investment grade (rating grade 11-17) |  |
Disclosure of financial assets [line Items] |  |
Average threshold ratio | 1.9 | 1.8

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