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FI - Roll-forward of assets measured at fair value on recurring basis (Details 4) - CHF (SFr)
SFr in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Assets measured at fair value on a recurring basis for level 3    
Retained Earnings (Accumulated Deficit) SFr 23,632 SFr 31,064
Recurring basis | Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 0  
Transfers in, assets 0  
Transfers out, assets 0  
Purchases, assets 0  
Sales, assets 0  
Issuances, assets 3  
Settlements, assets (3)  
Gain (loss) on transfers in/out included in trading revenues, assets 0  
Gain (loss) on all other activity included in trading revenues, assets 0  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets 0  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets 0  
Balance at end of period, assets 0 0
Recurring basis | Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 0  
Recurring basis | Securities received as collateral    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 14 101
Transfers in, assets 0 0
Transfers out, assets 0 0
Purchases, assets 0 73
Sales, assets (14) (164)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets 0 0
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 0 4
Balance at end of period, assets 0 14
Recurring basis | Securities received as collateral | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 0 0
Recurring basis | Trading assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 4,503 7,535
Transfers in, assets 1,818 1,345
Transfers out, assets (2,057) (3,413)
Purchases, assets 5,563 4,867
Sales, assets (5,184) (5,685)
Issuances, assets 967 874
Settlements, assets (1,076) (1,629)
Gain (loss) on transfers in/out included in trading revenues, assets 83 (133)
Gain (loss) on all other activity included in trading revenues, assets (847) 509
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (9) (1)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 67 234
Balance at end of period, assets 3,828 4,503
Recurring basis | Trading assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (193) 52
Recurring basis | Trading assets | Debt securities    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 1,225 2,253
Transfers in, assets 1,206 878
Transfers out, assets (1,090) (1,701)
Purchases, assets 4,622 3,668
Sales, assets (4,185) (4,141)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets (106) (331)
Gain (loss) on all other activity included in trading revenues, assets (499) 509
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (9) (1)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 47 91
Balance at end of period, assets 1,211 1,225
Recurring basis | Trading assets | Debt securities | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 215 103
Recurring basis | Trading assets | Debt securities | Corporate debt securities    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 478 1,270
Transfers in, assets 452 471
Transfers out, assets (582) (747)
Purchases, assets 3,933 2,753
Sales, assets (3,342) (3,483)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets (97) (321)
Gain (loss) on all other activity included in trading revenues, assets (464) 472
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 35 63
Balance at end of period, assets 413 478
Recurring basis | Trading assets | Debt securities | Corporate debt securities | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 226 154
Recurring basis | Trading assets | Debt securities | RMBS    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 424 557
Transfers in, assets 312 158
Transfers out, assets (179) (615)
Purchases, assets 306 654
Sales, assets (564) (385)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 3 (25)
Gain (loss) on all other activity included in trading revenues, assets 133 59
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 9 21
Balance at end of period, assets 444 424
Recurring basis | Trading assets | Debt securities | RMBS | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 4 (15)
Recurring basis | Trading assets | Debt securities | Collateralized debt obligations    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 245  
Transfers in, assets 201  
Transfers out, assets (138)  
Purchases, assets 103  
Sales, assets (148)  
Issuances, assets 0  
Settlements, assets 0  
Gain (loss) on transfers in/out included in trading revenues, assets (5)  
Gain (loss) on all other activity included in trading revenues, assets (39)  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets (9)  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets 6  
Balance at end of period, assets 216 245
Recurring basis | Trading assets | Debt securities | Collateralized debt obligations | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (6)  
Recurring basis | Trading assets | Derivative instruments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 2,187 3,911
Transfers in, assets 406 314
Transfers out, assets (824) (1,551)
Purchases, assets 0 0
Sales, assets 0 0
Issuances, assets 967 874
Settlements, assets (918) (1,514)
Gain (loss) on transfers in/out included in trading revenues, assets 144 79
Gain (loss) on all other activity included in trading revenues, assets (301) (16)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 0 90
Balance at end of period, assets 1,661 2,187
Recurring basis | Trading assets | Derivative instruments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (328) 116
Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 624 733
Transfers in, assets 11 58
Transfers out, assets (182) (222)
Purchases, assets 0 0
Sales, assets 0 0
Issuances, assets 89 175
Settlements, assets (66) (79)
Gain (loss) on transfers in/out included in trading revenues, assets (5) (8)
Gain (loss) on all other activity included in trading revenues, assets 229 (14)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets (29) (19)
Balance at end of period, assets 671 624
Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 166 141
Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 212  
Transfers in, assets 262  
Transfers out, assets (416)  
Purchases, assets 0  
Sales, assets 0  
Issuances, assets 473  
Settlements, assets (284)  
Gain (loss) on transfers in/out included in trading revenues, assets 106  
Gain (loss) on all other activity included in trading revenues, assets (55)  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets 0  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets (3)  
Balance at end of period, assets 295 212
Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 2  
Recurring basis | Trading assets | Derivative instruments | Credit derivatives    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 264  
Transfers in, assets 115  
Transfers out, assets (189)  
Purchases, assets 0  
Sales, assets 0  
Issuances, assets 65  
Settlements, assets (142)  
Gain (loss) on transfers in/out included in trading revenues, assets 31  
Gain (loss) on all other activity included in trading revenues, assets (19)  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets 0  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets 5  
Balance at end of period, assets 130 264
Recurring basis | Trading assets | Derivative instruments | Credit derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 1  
Recurring basis | Trading assets | Derivative instruments | Other derivatives    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 1,034 1,079
Transfers in, assets 9 1
Transfers out, assets (4) 0
Purchases, assets 0 0
Sales, assets 0 0
Issuances, assets 330 311
Settlements, assets (317) (325)
Gain (loss) on transfers in/out included in trading revenues, assets 4 0
Gain (loss) on all other activity included in trading revenues, assets (537) (73)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 29 41
Balance at end of period, assets 548 1,034
Recurring basis | Trading assets | Derivative instruments | Other derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (489) (81)
Recurring basis | Trading assets | Other    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 896 1,247
Transfers in, assets 27 31
Transfers out, assets (51) (90)
Purchases, assets 827 1,035
Sales, assets (923) (1,371)
Issuances, assets 0 0
Settlements, assets (158) (115)
Gain (loss) on transfers in/out included in trading revenues, assets 6 62
Gain (loss) on all other activity included in trading revenues, assets 94 49
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 16 48
Balance at end of period, assets 734 896
Recurring basis | Trading assets | Other | Other derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (123) (96)
Recurring basis | Other investments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 3,666 3,054
Transfers in, assets 69 99
Transfers out, assets (13) (758)
Purchases, assets 65 1,517
Sales, assets (207) (663)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets (253) 86
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (57) 267
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 42 64
Balance at end of period, assets 3,312 3,666
Recurring basis | Other investments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (95) 120
Recurring basis | Other investments | Other equity investments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 2,863 2,132
Transfers in, assets 69 65
Transfers out, assets 0 (757)
Purchases, assets 37 1,482
Sales, assets (17) (448)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets (190) 96
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (65) 263
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 27 30
Balance at end of period, assets 2,724 2,863
Recurring basis | Other investments | Other equity investments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (50) 80
Recurring basis | Other investments | Life finance instruments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 789 920
Transfers in, assets 0 0
Transfers out, assets 0 0
Purchases, assets 28 33
Sales, assets (182) (188)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets (63) (10)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 15 34
Balance at end of period, assets 587 789
Recurring basis | Other investments | Life finance instruments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (45) 39
Recurring basis | Loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 1,534 3,669
Transfers in, assets 566 257
Transfers out, assets (470) (1,315)
Purchases, assets 16 362
Sales, assets (45) (194)
Issuances, assets 63 207
Settlements, assets (667) (1,620)
Gain (loss) on transfers in/out included in trading revenues, assets 39 7
Gain (loss) on all other activity included in trading revenues, assets (46) 55
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (6) (3)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 56 109
Balance at end of period, assets 1,040 1,534
Recurring basis | Loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (92) (59)
Recurring basis | Commercial and industrial loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 717 1,347
Transfers in, assets 163 213
Transfers out, assets (327) (364)
Purchases, assets 0 10
Sales, assets (18) (133)
Issuances, assets 4 162
Settlements, assets (218) (643)
Gain (loss) on transfers in/out included in trading revenues, assets 12 19
Gain (loss) on all other activity included in trading revenues, assets (50) 74
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (6) (3)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 23 35
Balance at end of period, assets 300 717
Recurring basis | Commercial and industrial loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (74) 6
Recurring basis | Financial institutions loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 465 1,082
Transfers in, assets 141 43
Transfers out, assets (41) (340)
Purchases, assets 15 0
Sales, assets (15) (42)
Issuances, assets 58 34
Settlements, assets (293) (409)
Gain (loss) on transfers in/out included in trading revenues, assets 16 1
Gain (loss) on all other activity included in trading revenues, assets 29 70
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 23 26
Balance at end of period, assets 398 465
Recurring basis | Financial institutions loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 9 27
Recurring basis | Governments and public institutions loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 289 729
Transfers in, assets 91 1
Transfers out, assets (39) (298)
Purchases, assets 1 0
Sales, assets 0 (1)
Issuances, assets 1 (1)
Settlements, assets (72) (68)
Gain (loss) on transfers in/out included in trading revenues, assets 1 (12)
Gain (loss) on all other activity included in trading revenues, assets (24) (88)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 6 27
Balance at end of period, assets 254 289
Recurring basis | Governments and public institutions loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (25) (87)
Recurring basis | Other intangible assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 167 180
Transfers in, assets 187 0
Transfers out, assets 0 0
Purchases, assets 0 22
Sales, assets 0 0
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets 4 0
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 (42)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 1 7
Balance at end of period, assets 359 167
Recurring basis | Other intangible assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 4 (42)
Recurring basis | Other assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 694 1,825
Transfers in, assets 452 370
Transfers out, assets (289) (902)
Purchases, assets 743 3,447
Sales, assets (593) (3,269)
Issuances, assets 157 120
Settlements, assets (417) (924)
Gain (loss) on transfers in/out included in trading revenues, assets 46 14
Gain (loss) on all other activity included in trading revenues, assets (49) (41)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 3 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 26 54
Balance at end of period, assets 773 694
Recurring basis | Other assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (31) (137)
Recurring basis | Other assets - of which loans held-for-sale    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 562 1,576
Transfers in, assets 379 360
Transfers out, assets (232) (855)
Purchases, assets 724 3,394
Sales, assets (591) (3,222)
Issuances, assets 157 120
Settlements, assets (415) (921)
Gain (loss) on transfers in/out included in trading revenues, assets 15 25
Gain (loss) on all other activity included in trading revenues, assets 26 41
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 23 44
Balance at end of period, assets 648 562
Recurring basis | Other assets - of which loans held-for-sale | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (15) (104)
Recurring basis | Assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 10,578 16,364
Transfers in, assets 3,092 2,071
Transfers out, assets (2,829) (6,388)
Purchases, assets 6,387 10,288
Sales, assets (6,043) (9,975)
Issuances, assets 1,190 1,201
Settlements, assets (2,163) (4,173)
Gain (loss) on transfers in/out included in trading revenues, assets 168 (112)
Gain (loss) on all other activity included in trading revenues, assets (1,191) 609
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (69) 221
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 192 472
Balance at end of period, assets 9,312 10,578
Recurring basis | Assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (407) (66)
Bank    
Assets measured at fair value on a recurring basis for level 3    
Retained Earnings (Accumulated Deficit) 7,659 14,932
Bank | Recurring basis | Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 0  
Transfers in, assets 0  
Transfers out, assets 0  
Purchases, assets 0  
Sales, assets 0  
Issuances, assets 3  
Settlements, assets (3)  
Gain (loss) on transfers in/out included in trading revenues, assets 0  
Gain (loss) on all other activity included in trading revenues, assets 0  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets 0  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets 0  
Balance at end of period, assets 0 0
Bank | Recurring basis | Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions | Debt securities | RMBS | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 0  
Bank | Recurring basis | Securities received as collateral    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 14 101
Transfers in, assets 0 0
Transfers out, assets 0 0
Purchases, assets 0 73
Sales, assets (14) (164)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets 0 0
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 0 4
Balance at end of period, assets 0 14
Bank | Recurring basis | Securities received as collateral | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 0 0
Bank | Recurring basis | Trading assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 4,503 7,535
Transfers in, assets 1,818 1,345
Transfers out, assets (2,057) (3,413)
Purchases, assets 5,563 4,867
Sales, assets (5,184) (5,685)
Issuances, assets 967 874
Settlements, assets (1,076) (1,629)
Gain (loss) on transfers in/out included in trading revenues, assets 83 (133)
Gain (loss) on all other activity included in trading revenues, assets (847) 509
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (9) (1)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 67 234
Balance at end of period, assets 3,828 4,503
Bank | Recurring basis | Trading assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (193) 52
Bank | Recurring basis | Trading assets | Debt securities    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 1,225 2,253
Transfers in, assets 1,206 878
Transfers out, assets (1,090) (1,701)
Purchases, assets 4,622 3,668
Sales, assets (4,185) (4,141)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets (106) (331)
Gain (loss) on all other activity included in trading revenues, assets (499) 509
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (9) (1)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 47 91
Balance at end of period, assets 1,211 1,225
Bank | Recurring basis | Trading assets | Debt securities | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 215 103
Bank | Recurring basis | Trading assets | Debt securities | Corporate debt securities    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 478 1,270
Transfers in, assets 452 471
Transfers out, assets (582) (747)
Purchases, assets 3,933 2,753
Sales, assets (3,342) (3,483)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets (97) (321)
Gain (loss) on all other activity included in trading revenues, assets (464) 472
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 35 63
Balance at end of period, assets 413 478
Bank | Recurring basis | Trading assets | Debt securities | Corporate debt securities | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 226 154
Bank | Recurring basis | Trading assets | Debt securities | RMBS    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 424 557
Transfers in, assets 312 158
Transfers out, assets (179) (615)
Purchases, assets 306 654
Sales, assets (564) (385)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 3 (25)
Gain (loss) on all other activity included in trading revenues, assets 133 59
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 9 21
Balance at end of period, assets 444 424
Bank | Recurring basis | Trading assets | Debt securities | RMBS | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 4 (15)
Bank | Recurring basis | Trading assets | Debt securities | Collateralized debt obligations    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 245  
Transfers in, assets 201  
Transfers out, assets (138)  
Purchases, assets 103  
Sales, assets (148)  
Issuances, assets 0  
Settlements, assets 0  
Gain (loss) on transfers in/out included in trading revenues, assets (5)  
Gain (loss) on all other activity included in trading revenues, assets (39)  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets (9)  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets 6  
Balance at end of period, assets 216 245
Bank | Recurring basis | Trading assets | Debt securities | Collateralized debt obligations | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (6)  
Bank | Recurring basis | Trading assets | Derivative instruments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 2,187 3,911
Transfers in, assets 406 314
Transfers out, assets (824) (1,551)
Purchases, assets 0 0
Sales, assets 0 0
Issuances, assets 967 874
Settlements, assets (918) (1,514)
Gain (loss) on transfers in/out included in trading revenues, assets 144 79
Gain (loss) on all other activity included in trading revenues, assets (301) (16)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 0 90
Balance at end of period, assets 1,661 2,187
Bank | Recurring basis | Trading assets | Derivative instruments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (328) 116
Bank | Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 624 733
Transfers in, assets 11 58
Transfers out, assets (182) (222)
Purchases, assets 0 0
Sales, assets 0 0
Issuances, assets 89 175
Settlements, assets (66) (79)
Gain (loss) on transfers in/out included in trading revenues, assets (5) (8)
Gain (loss) on all other activity included in trading revenues, assets 229 (14)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets (29) (19)
Balance at end of period, assets 671 624
Bank | Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 166 141
Bank | Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 212  
Transfers in, assets 262  
Transfers out, assets (416)  
Purchases, assets 0  
Sales, assets 0  
Issuances, assets 473  
Settlements, assets (284)  
Gain (loss) on transfers in/out included in trading revenues, assets 106  
Gain (loss) on all other activity included in trading revenues, assets (55)  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets 0  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets (3)  
Balance at end of period, assets 295 212
Bank | Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 2  
Bank | Recurring basis | Trading assets | Derivative instruments | Credit derivatives    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 264  
Transfers in, assets 115  
Transfers out, assets (189)  
Purchases, assets 0  
Sales, assets 0  
Issuances, assets 65  
Settlements, assets (142)  
Gain (loss) on transfers in/out included in trading revenues, assets 31  
Gain (loss) on all other activity included in trading revenues, assets (19)  
Gain (loss) on transfers in/out included in other revenues, assets 0  
Gain (loss) on all other activity included in other revenues, assets 0  
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0  
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0  
Foreign currency translation impact, assets 5  
Balance at end of period, assets 130 264
Bank | Recurring basis | Trading assets | Derivative instruments | Credit derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 1  
Bank | Recurring basis | Trading assets | Derivative instruments | Other derivatives    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 1,034 1,079
Transfers in, assets 9 1
Transfers out, assets (4) 0
Purchases, assets 0 0
Sales, assets 0 0
Issuances, assets 330 311
Settlements, assets (317) (325)
Gain (loss) on transfers in/out included in trading revenues, assets 4 0
Gain (loss) on all other activity included in trading revenues, assets (537) (73)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 29 41
Balance at end of period, assets 548 1,034
Bank | Recurring basis | Trading assets | Derivative instruments | Other derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (489) (81)
Bank | Recurring basis | Trading assets | Other    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 896 1,247
Transfers in, assets 27 31
Transfers out, assets (51) (90)
Purchases, assets 827 1,035
Sales, assets (923) (1,371)
Issuances, assets 0 0
Settlements, assets (158) (115)
Gain (loss) on transfers in/out included in trading revenues, assets 6 62
Gain (loss) on all other activity included in trading revenues, assets 94 49
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 16 48
Balance at end of period, assets 734 896
Bank | Recurring basis | Trading assets | Other | Other derivatives | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (123) (96)
Bank | Recurring basis | Other investments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 3,666 3,054
Transfers in, assets 69 99
Transfers out, assets (13) (758)
Purchases, assets 65 1,513
Sales, assets (206) (658)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets (253) 86
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (57) 267
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 42 63
Balance at end of period, assets 3,313 3,666
Bank | Recurring basis | Other investments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (95) 120
Bank | Recurring basis | Other investments | Other equity investments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 2,863 2,132
Transfers in, assets 69 65
Transfers out, assets 0 (757)
Purchases, assets 37 1,478
Sales, assets (16) (443)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets (190) 96
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (65) 262
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 27 30
Balance at end of period, assets 2,725 2,863
Bank | Recurring basis | Other investments | Other equity investments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (50) 80
Bank | Recurring basis | Other investments | Life finance instruments    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 789 920
Transfers in, assets 0 0
Transfers out, assets 0 0
Purchases, assets 28 33
Sales, assets (182) (188)
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets (63) (10)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 15 34
Balance at end of period, assets 587 789
Bank | Recurring basis | Other investments | Life finance instruments | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (45) 39
Bank | Recurring basis | Loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 1,534 3,669
Transfers in, assets 566 257
Transfers out, assets (470) (1,315)
Purchases, assets 16 362
Sales, assets (45) (194)
Issuances, assets 63 207
Settlements, assets (667) (1,620)
Gain (loss) on transfers in/out included in trading revenues, assets 39 7
Gain (loss) on all other activity included in trading revenues, assets (46) 55
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (6) (3)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 56 109
Balance at end of period, assets 1,040 1,534
Bank | Recurring basis | Loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (92) (59)
Bank | Recurring basis | Commercial and industrial loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 717 1,347
Transfers in, assets 163 213
Transfers out, assets (327) (364)
Purchases, assets 0 10
Sales, assets (18) (133)
Issuances, assets 4 162
Settlements, assets (218) (643)
Gain (loss) on transfers in/out included in trading revenues, assets 12 19
Gain (loss) on all other activity included in trading revenues, assets (50) 74
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (6) (3)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 23 35
Balance at end of period, assets 300 717
Bank | Recurring basis | Commercial and industrial loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (74) 6
Bank | Recurring basis | Financial institutions loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 465 1,082
Transfers in, assets 141 43
Transfers out, assets (41) (340)
Purchases, assets 15 0
Sales, assets (15) (42)
Issuances, assets 58 34
Settlements, assets (293) (409)
Gain (loss) on transfers in/out included in trading revenues, assets 16 1
Gain (loss) on all other activity included in trading revenues, assets 29 70
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 23 26
Balance at end of period, assets 398 465
Bank | Recurring basis | Financial institutions loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 9 27
Bank | Recurring basis | Governments and public institutions loans    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 289 729
Transfers in, assets 91 1
Transfers out, assets (39) (298)
Purchases, assets 1 0
Sales, assets 0 (1)
Issuances, assets 1 (1)
Settlements, assets (72) (68)
Gain (loss) on transfers in/out included in trading revenues, assets 1 (12)
Gain (loss) on all other activity included in trading revenues, assets (24) (88)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 6 27
Balance at end of period, assets 254 289
Bank | Recurring basis | Governments and public institutions loans | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (25) (87)
Bank | Recurring basis | Other intangible assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 167 180
Transfers in, assets 187 0
Transfers out, assets 0 0
Purchases, assets 0 22
Sales, assets 0 0
Issuances, assets 0 0
Settlements, assets 0 0
Gain (loss) on transfers in/out included in trading revenues, assets 0 0
Gain (loss) on all other activity included in trading revenues, assets 4 0
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 (42)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 1 7
Balance at end of period, assets 359 167
Bank | Recurring basis | Other intangible assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses 4 (42)
Bank | Recurring basis | Other assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 694 1,825
Transfers in, assets 452 370
Transfers out, assets (289) (902)
Purchases, assets 743 3,447
Sales, assets (593) (3,269)
Issuances, assets 157 120
Settlements, assets (417) (924)
Gain (loss) on transfers in/out included in trading revenues, assets 46 14
Gain (loss) on all other activity included in trading revenues, assets (49) (41)
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 3 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 26 54
Balance at end of period, assets 773 694
Bank | Recurring basis | Other assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (31) (137)
Bank | Recurring basis | Other assets - of which loans held-for-sale    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 562 1,576
Transfers in, assets 379 360
Transfers out, assets (232) (855)
Purchases, assets 724 3,394
Sales, assets (591) (3,222)
Issuances, assets 157 120
Settlements, assets (415) (921)
Gain (loss) on transfers in/out included in trading revenues, assets 15 25
Gain (loss) on all other activity included in trading revenues, assets 26 41
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets 0 0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 23 44
Balance at end of period, assets 648 562
Bank | Recurring basis | Other assets - of which loans held-for-sale | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses (15) (104)
Bank | Recurring basis | Assets    
Assets measured at fair value on a recurring basis for level 3    
Balance at beginning of period, assets 10,578 16,364
Transfers in, assets 3,092 2,071
Transfers out, assets (2,829) (6,388)
Purchases, assets 6,387 10,284
Sales, assets (6,042) (9,970)
Issuances, assets 1,190 1,201
Settlements, assets (2,163) (4,173)
Gain (loss) on transfers in/out included in trading revenues, assets 168 (112)
Gain (loss) on all other activity included in trading revenues, assets (1,191) 609
Gain (loss) on transfers in/out included in other revenues, assets 0 0
Gain (loss) on all other activity included in other revenues, assets (69) 221
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets 0 0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets 0 0
Foreign currency translation impact, assets 192 471
Balance at end of period, assets 9,313 10,578
Bank | Recurring basis | Assets | Net Revenue [Member]    
Assets measured at fair value on a recurring basis for level 3    
Changes in unrealized gains/losses SFr (407) SFr (66)