XML 221 R109.htm IDEA: XBRL DOCUMENT v3.22.4
Expected credit loss measurement - Coverage ratios (Detail 2) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Disclosure Of Provision Matrix [Table]    
Total exposure $ 112,050 $ 108,284
Total on- and off-balance sheet $ 498,921 $ 507,990
ECL coverage 0.21% 0.22%
Increase decrease in ECL coverage (0.01%)  
Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 108,249 $ 106,840
ECL coverage 0.19% 0.18%
Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,535 $ 9,123
ECL coverage 0.05% 0.03%
Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 10,054 $ 8,766
ECL coverage 0.06% 0.09%
Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 16,589 $ 17,889
ECL coverage 0.06% 0.06%
Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 32,126 $ 32,748
ECL coverage 0.38% 0.34%
Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 39,247 $ 8,077
ECL coverage 0.40% 0.38%
Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 7,122 $ 40,826
ECL coverage 0.47% 0.35%
Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 12,919 $ 14,438
ECL coverage 0.02% 0.01%
Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 9,390 $ 9,466
ECL coverage 0.07% 0.07%
Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 2,459 $ 3,262
ECL coverage 0.03% 0.04%
Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 15,841 $ 12,153
ECL coverage 0.09% 0.15%
Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 11,803 $ 8,806
ECL coverage 0.11% 0.15%
Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 52,412 $ 48,126
ECL coverage 0.07% 0.09%
Positions that are not credit impaired    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.10% 0.10%
Positions that are not credit impaired | Total    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.16% 0.17%
Positions that are not credit impaired | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.04% 0.03%
Positions that are not credit impaired | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.06% 0.09%
Positions that are not credit impaired | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.06% 0.06%
Positions that are not credit impaired | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.32% 0.35%
Positions that are not credit impaired | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.34% 0.30%
Positions that are not credit impaired | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.43% 0.34%
Positions that are not credit impaired | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.01% 0.00%
Positions that are not credit impaired | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.07% 0.07%
Positions that are not credit impaired | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.03% 0.04%
Positions that are not credit impaired | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.09% 0.15%
Positions that are not credit impaired | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.09% 0.07%
Positions that are not credit impaired | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.06% 0.07%
Twelve-month expected credit losses | Positions that are not credit impaired    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 105,258 $ 101,971
Total on- and off-balance sheet $ 474,045 $ 483,420
ECL coverage 0.05% 0.06%
Twelve-month expected credit losses | Positions that are not credit impaired | Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 101,457 $ 100,527
ECL coverage 0.10% 0.12%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,296 $ 8,798
ECL coverage 0.04% 0.03%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 9,779 $ 8,481
ECL coverage 0.07% 0.07%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 16,075 $ 17,278
ECL coverage 0.06% 0.05%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 28,950 $ 28,981
ECL coverage 0.18% 0.25%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 35,475 $ 7,276
ECL coverage 0.20% 0.19%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,525 $ 36,258
ECL coverage 0.30% 0.24%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 12,918 $ 14,438
ECL coverage 0.01% 0.00%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 8,900 $ 9,000
ECL coverage 0.05% 0.05%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 2,459 $ 3,262
ECL coverage 0.03% 0.04%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 14,177 $ 11,784
ECL coverage 0.07% 0.12%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 11,454 $ 8,507
ECL coverage 0.08% 0.06%
Twelve-month expected credit losses | Positions that are not credit impaired | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 49,907 $ 46,991
ECL coverage 0.05% 0.05%
Lifetime expected credit losses | Positions that are not credit impaired    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,522 $ 6,006
Total on- and off-balance sheet $ 22,418 $ 21,888
ECL coverage 1.12% 0.99%
Lifetime expected credit losses | Positions that are not credit impaired | Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,522 $ 6,006
ECL coverage 1.06% 1.00%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 236 $ 276
ECL coverage 0.18% 0.09%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 275 $ 285
ECL coverage 0.00% 0.88%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 511 $ 562
ECL coverage 0.02% 0.49%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3,013 $ 3,630
ECL coverage 1.65% 1.10%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3,513 $ 688
ECL coverage 1.72% 1.51%
Lifetime expected credit losses | Positions that are not credit impaired | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 499 $ 4,318
ECL coverage 2.14% 1.17%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 487 $ 462
ECL coverage 0.36% 0.34%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 1,664 $ 369
ECL coverage 0.25% 1.20%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 346 $ 296
ECL coverage 0.68% 0.30%
Lifetime expected credit losses | Positions that are not credit impaired | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 2,498 $ 1,127
ECL coverage 0.33% 0.61%
Lifetime expected credit losses | Credit-impaired positions    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 270 $ 307
Total on- and off-balance sheet $ 2,458 $ 2,681
ECL coverage 22.42% 24.23%
Increase decrease in ECL coverage (2.00%)  
Lifetime expected credit losses | Credit-impaired positions | Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 270 $ 307
ECL coverage 9.80% 4.86%
Lifetime expected credit losses | Credit-impaired positions | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 49
ECL coverage 11.83% 0.15%
Lifetime expected credit losses | Credit-impaired positions | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Credit-impaired positions | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 49
ECL coverage 12.88% 0.15%
Lifetime expected credit losses | Credit-impaired positions | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 163 $ 136
ECL coverage 12.63% 0.01%
Lifetime expected credit losses | Credit-impaired positions | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 260 $ 114
ECL coverage 9.03% 5.85%
Lifetime expected credit losses | Credit-impaired positions | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 98 $ 250
ECL coverage 3.04% 2.66%
Lifetime expected credit losses | Credit-impaired positions | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 1 $ 0
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Credit-impaired positions | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 4
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Credit-impaired positions | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Credit-impaired positions | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Credit-impaired positions | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 4
ECL coverage 0.00% 0.00%
Lifetime expected credit losses | Credit-impaired positions | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 7 $ 8
ECL coverage 0.00% 0.00%
UBS AG    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 114,337 $ 109,878
Total on- and off-balance sheet $ 504,016 $ 510,516
ECL coverage 0.21% 0.22%
Increase decrease in ECL coverage (0.01%)  
UBS AG | Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 110,537 $ 108,434
ECL coverage 0.18% 0.18%
UBS AG | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,535 $ 9,123
ECL coverage 0.05% 0.03%
UBS AG | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 10,054 $ 8,766
ECL coverage 0.06% 0.09%
UBS AG | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 16,589 $ 17,889
ECL coverage 0.06% 0.06%
UBS AG | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 32,126 $ 32,748
ECL coverage 0.38% 0.34%
UBS AG | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 7,122 $ 8,077
ECL coverage 0.47% 0.38%
UBS AG | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 39,247 $ 40,826
ECL coverage 0.40% 0.35%
UBS AG | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 12,919 $ 14,438
ECL coverage 0.02% 0.01%
UBS AG | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 9,390 $ 9,466
ECL coverage 0.07% 0.07%
UBS AG | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 2,459 $ 3,262
ECL coverage 0.03% 0.04%
UBS AG | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 18,128 $ 13,747
ECL coverage 0.07% 0.13%
UBS AG | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 11,803 $ 8,806
ECL coverage 0.11% 0.15%
UBS AG | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 54,700 $ 49,720
ECL coverage 0.06% 0.08%
UBS AG | Positions that are not credit impaired    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.10% 0.09%
UBS AG | Positions that are not credit impaired | Total    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.16% 0.17%
UBS AG | Positions that are not credit impaired | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.04% 0.03%
UBS AG | Positions that are not credit impaired | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.06% 0.09%
UBS AG | Positions that are not credit impaired | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.06% 0.06%
UBS AG | Positions that are not credit impaired | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.32% 0.35%
UBS AG | Positions that are not credit impaired | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.43% 0.30%
UBS AG | Positions that are not credit impaired | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.34% 0.34%
UBS AG | Positions that are not credit impaired | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.01% 0.00%
UBS AG | Positions that are not credit impaired | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.07% 0.07%
UBS AG | Positions that are not credit impaired | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.03% 0.04%
UBS AG | Positions that are not credit impaired | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.07% 0.13%
UBS AG | Positions that are not credit impaired | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.09% 0.07%
UBS AG | Positions that are not credit impaired | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
ECL coverage 0.06% 0.07%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 107,545 $ 103,565
Total on- and off-balance sheet $ 479,140 $ 485,946
ECL coverage 0.05% 0.05%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 103,745 $ 102,121
ECL coverage 0.10% 0.12%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,296 $ 8,798
ECL coverage 0.04% 0.03%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 9,779 $ 8,481
ECL coverage 0.07% 0.07%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 16,075 $ 17,278
ECL coverage 0.06% 0.05%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 28,950 $ 28,981
ECL coverage 0.18% 0.25%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,525 $ 7,276
ECL coverage 0.30% 0.19%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 35,475 $ 36,258
ECL coverage 0.20% 0.24%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 12,918 $ 14,438
ECL coverage 0.01% 0.00%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 8,900 $ 9,000
ECL coverage 0.05% 0.05%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 2,459 $ 3,262
ECL coverage 0.03% 0.04%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 16,464 $ 13,379
ECL coverage 0.06% 0.10%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 11,454 $ 8,507
ECL coverage 0.08% 0.06%
UBS AG | Twelve-month expected credit losses | Positions that are not credit impaired | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 52,195 $ 48,585
ECL coverage 0.05% 0.05%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,522 $ 6,006
Total on- and off-balance sheet $ 22,418 $ 21,888
ECL coverage 1.12% 0.99%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 6,522 $ 6,006
ECL coverage 1.06% 1.00%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 236 $ 276
ECL coverage 0.18% 0.09%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 275 $ 285
ECL coverage 0.00% 0.88%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 511 $ 562
ECL coverage 0.02% 0.49%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3,013 $ 3,630
ECL coverage 1.65% 1.10%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 499 $ 688
ECL coverage 2.14% 1.51%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3,513 $ 4,318
ECL coverage 1.72% 1.17%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 487 $ 462
ECL coverage 0.36% 0.34%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 1,664 $ 369
ECL coverage 0.25% 1.20%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 346 $ 296
ECL coverage 0.68% 0.30%
UBS AG | Lifetime expected credit losses | Positions that are not credit impaired | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 2,498 $ 1,127
ECL coverage 0.33% 0.61%
UBS AG | Lifetime expected credit losses | Credit-impaired positions    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 270 $ 307
Total on- and off-balance sheet $ 2,458 $ 2,681
ECL coverage 22.42% 24.23%
Increase decrease in ECL coverage (2.00%)  
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 270 $ 307
ECL coverage 9.80% 4.86%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Private clients with mortgages    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 49
ECL coverage 11.83% 0.15%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Real estate financing    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Total real estate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 49
ECL coverage 12.88% 0.15%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Large corporate clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 163 $ 136
ECL coverage 12.63% 0.01%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Total corporate lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 98 $ 114
ECL coverage 3.04% 5.85%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | SME clients    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 260 $ 250
ECL coverage 9.03% 2.66%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Lombard    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 1 $ 0
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Credit cards    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 4
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Commodity trade finance    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Financial intermediaries and hedge funds    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 0 $ 0
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Other off-balance sheet commitments    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 3 $ 4
ECL coverage 0.00% 0.00%
UBS AG | Lifetime expected credit losses | Credit-impaired positions | Total | Total other lending    
Disclosure Of Provision Matrix [Table]    
Total exposure $ 7 $ 8
ECL coverage 0.00% 0.00%