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Net fee and commission income (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Net fee And Commission Income [Line Items] |  |  |  |  |
Underwriting Fees | $ 153 | $ 127 | $ 111 | $ 280 | $ 283
M&A and corporate finance fees | 199 | 178 | 220 | 378 | 456
Brokerage fees | 930 | 880 | 869 | 1,809 | 1,946
Investment fund fees | 1,196 | 1,178 | 1,233 | 2,374 | 2,620
Portfolio management and related services | 2,485 | 2,210 | 2,298 | 4,695 | 4,761
Other | 719 | 479 | 492 | 1,199 | 993
Total fee and commission income | 5,682 | 5,053 | 5,224 | 10,735 | 11,061
Fee and commission expense | 507 | 447 | 450 | 954 | 934
Net fee and commission income | 5,175 | 4,606 | 4,774 | 9,781 | 10,127
Credit Suisse |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 675 |  |  |  |
Global Wealth Management |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 3,134 | 3,145 | 3,281 |  |
Personal & Corporate Banking |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 465 | 449 | 421 |  |
Asset Management |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 673 | 687 | 720 |  |
Investment Bank |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 731 | 770 | 801 |  |
Group Functions |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 4 | 3 | 1 |  |
of which: recurring |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 3,808 | 3,413 | 3,593 | 7,221 | 7,453
of which: transaction-based |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | 1,864 | 1,616 | 1,621 | 3,480 | 3,579
of which: performance-based |  |  |  |  |
Net fee And Commission Income [Line Items] |  |  |  |  |
Total fee and commission income | $ 10 | $ 24 | $ 10 | $ 34 | $ 29

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