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Risk management - Non-performing Loans: outstandings by economic sectors and geographical area (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Wholesale Banking    
Non performing Loans [line items]    
Increase (decrease) in financial assets € 1,200  
Retail Challengers & Growth Markets [member]    
Non performing Loans [line items]    
Increase (decrease) in financial assets 500  
Financial assets past due but not impaired    
Non performing Loans [line items]    
Financial assets 13,295 € 11,653
Financial assets past due but not impaired | Retail Banking    
Non performing Loans [line items]    
Financial assets 8,099 7,619
Financial assets past due but not impaired | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 5,196 4,034
Financial assets past due but not impaired | Netherlands    
Non performing Loans [line items]    
Financial assets 1,549 1,586
Financial assets past due but not impaired | Belgium    
Non performing Loans [line items]    
Financial assets 3,071 3,153
Financial assets past due but not impaired | Germany    
Non performing Loans [line items]    
Financial assets 1,432 1,114
Financial assets past due but not impaired | Poland    
Non performing Loans [line items]    
Financial assets 1,457 929
Financial assets past due but not impaired | Spain    
Non performing Loans [line items]    
Financial assets 432 293
Financial assets past due but not impaired | United Kingdom    
Non performing Loans [line items]    
Financial assets 322 165
Financial assets past due but not impaired | France    
Non performing Loans [line items]    
Financial assets 307 124
Financial assets past due but not impaired | Luxembourg    
Non performing Loans [line items]    
Financial assets 166 162
Financial assets past due but not impaired | Rest of Europe    
Non performing Loans [line items]    
Financial assets 1,916 1,193
Financial assets past due but not impaired | America    
Non performing Loans [line items]    
Financial assets 1,145 1,210
Financial assets past due but not impaired | Asia    
Non performing Loans [line items]    
Financial assets 723 1,050
Financial assets past due but not impaired | Australia    
Non performing Loans [line items]    
Financial assets 567 403
Financial assets past due but not impaired | Africa    
Non performing Loans [line items]    
Financial assets 210 272
Financial assets past due but not impaired | Private Individuals    
Non performing Loans [line items]    
Financial assets 4,769 4,419
Financial assets past due but not impaired | Private Individuals | Retail Banking    
Non performing Loans [line items]    
Financial assets 4,766 4,416
Financial assets past due but not impaired | Private Individuals | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 4 4
Financial assets past due but not impaired | Private Individuals | Netherlands    
Non performing Loans [line items]    
Financial assets 646 609
Financial assets past due but not impaired | Private Individuals | Belgium    
Non performing Loans [line items]    
Financial assets 1,461 1,535
Financial assets past due but not impaired | Private Individuals | Germany    
Non performing Loans [line items]    
Financial assets 1,066 885
Financial assets past due but not impaired | Private Individuals | Poland    
Non performing Loans [line items]    
Financial assets 210 225
Financial assets past due but not impaired | Private Individuals | Spain    
Non performing Loans [line items]    
Financial assets 304 235
Financial assets past due but not impaired | Private Individuals | United Kingdom    
Non performing Loans [line items]    
Financial assets 10 3
Financial assets past due but not impaired | Private Individuals | France    
Non performing Loans [line items]    
Financial assets 8 8
Financial assets past due but not impaired | Private Individuals | Luxembourg    
Non performing Loans [line items]    
Financial assets 44 45
Financial assets past due but not impaired | Private Individuals | Rest of Europe    
Non performing Loans [line items]    
Financial assets 545 489
Financial assets past due but not impaired | Private Individuals | America    
Non performing Loans [line items]    
Financial assets 2 2
Financial assets past due but not impaired | Private Individuals | Asia    
Non performing Loans [line items]    
Financial assets 2 2
Financial assets past due but not impaired | Private Individuals | Australia    
Non performing Loans [line items]    
Financial assets 469 380
Financial assets past due but not impaired | Private Individuals | Africa    
Non performing Loans [line items]    
Financial assets 1
Financial assets past due but not impaired | Natural Resources    
Non performing Loans [line items]    
Financial assets 1,064 754
Financial assets past due but not impaired | Natural Resources | Retail Banking    
Non performing Loans [line items]    
Financial assets 99 85
Financial assets past due but not impaired | Natural Resources | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 965 669
Financial assets past due but not impaired | Natural Resources | Netherlands    
Non performing Loans [line items]    
Financial assets 13 30
Financial assets past due but not impaired | Natural Resources | Belgium    
Non performing Loans [line items]    
Financial assets 54 60
Financial assets past due but not impaired | Natural Resources | Germany    
Non performing Loans [line items]    
Financial assets 1
Financial assets past due but not impaired | Natural Resources | Poland    
Non performing Loans [line items]    
Financial assets 33 23
Financial assets past due but not impaired | Natural Resources | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Natural Resources | United Kingdom    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Natural Resources | France    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Natural Resources | Luxembourg    
Non performing Loans [line items]    
Financial assets 55
Financial assets past due but not impaired | Natural Resources | Rest of Europe    
Non performing Loans [line items]    
Financial assets 569 164
Financial assets past due but not impaired | Natural Resources | America    
Non performing Loans [line items]    
Financial assets 31 31
Financial assets past due but not impaired | Natural Resources | Asia    
Non performing Loans [line items]    
Financial assets 343 369
Financial assets past due but not impaired | Natural Resources | Australia    
Non performing Loans [line items]    
Financial assets 21
Financial assets past due but not impaired | Natural Resources | Africa    
Non performing Loans [line items]    
Financial assets 20
Financial assets past due but not impaired | Food, Beverages & Personal Care    
Non performing Loans [line items]    
Financial assets 809 1,085
Financial assets past due but not impaired | Food, Beverages & Personal Care | Retail Banking    
Non performing Loans [line items]    
Financial assets 357 520
Financial assets past due but not impaired | Food, Beverages & Personal Care | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 452 565
Financial assets past due but not impaired | Food, Beverages & Personal Care | Netherlands    
Non performing Loans [line items]    
Financial assets 196 281
Financial assets past due but not impaired | Food, Beverages & Personal Care | Belgium    
Non performing Loans [line items]    
Financial assets 154 157
Financial assets past due but not impaired | Food, Beverages & Personal Care | Germany    
Non performing Loans [line items]    
Financial assets 1 1
Financial assets past due but not impaired | Food, Beverages & Personal Care | Poland    
Non performing Loans [line items]    
Financial assets 93 131
Financial assets past due but not impaired | Food, Beverages & Personal Care | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Food, Beverages & Personal Care | United Kingdom    
Non performing Loans [line items]    
Financial assets 23 139
Financial assets past due but not impaired | Food, Beverages & Personal Care | France    
Non performing Loans [line items]    
Financial assets 5 7
Financial assets past due but not impaired | Food, Beverages & Personal Care | Luxembourg    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Food, Beverages & Personal Care | Rest of Europe    
Non performing Loans [line items]    
Financial assets 158 158
Financial assets past due but not impaired | Food, Beverages & Personal Care | America    
Non performing Loans [line items]    
Financial assets 51 82
Financial assets past due but not impaired | Food, Beverages & Personal Care | Asia    
Non performing Loans [line items]    
Financial assets 127 128
Financial assets past due but not impaired | Food, Beverages & Personal Care | Australia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Food, Beverages & Personal Care | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Transportation & Logistics    
Non performing Loans [line items]    
Financial assets 504 572
Financial assets past due but not impaired | Transportation & Logistics | Retail Banking    
Non performing Loans [line items]    
Financial assets 157 134
Financial assets past due but not impaired | Transportation & Logistics | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 347 437
Financial assets past due but not impaired | Transportation & Logistics | Netherlands    
Non performing Loans [line items]    
Financial assets 93 110
Financial assets past due but not impaired | Transportation & Logistics | Belgium    
Non performing Loans [line items]    
Financial assets 40 50
Financial assets past due but not impaired | Transportation & Logistics | Germany    
Non performing Loans [line items]    
Financial assets 3 2
Financial assets past due but not impaired | Transportation & Logistics | Poland    
Non performing Loans [line items]    
Financial assets 124 51
Financial assets past due but not impaired | Transportation & Logistics | Spain    
Non performing Loans [line items]    
Financial assets 47 47
Financial assets past due but not impaired | Transportation & Logistics | United Kingdom    
Non performing Loans [line items]    
Financial assets 20
Financial assets past due but not impaired | Transportation & Logistics | France    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Transportation & Logistics | Luxembourg    
Non performing Loans [line items]    
Financial assets 1 1
Financial assets past due but not impaired | Transportation & Logistics | Rest of Europe    
Non performing Loans [line items]    
Financial assets 136 168
Financial assets past due but not impaired | Transportation & Logistics | America    
Non performing Loans [line items]    
Financial assets 49
Financial assets past due but not impaired | Transportation & Logistics | Asia    
Non performing Loans [line items]    
Financial assets 1
Financial assets past due but not impaired | Transportation & Logistics | Australia    
Non performing Loans [line items]    
Financial assets 1 2
Financial assets past due but not impaired | Transportation & Logistics | Africa    
Non performing Loans [line items]    
Financial assets 59 72
Financial assets past due but not impaired | Services    
Non performing Loans [line items]    
Financial assets 495 582
Financial assets past due but not impaired | Services | Retail Banking    
Non performing Loans [line items]    
Financial assets 394 481
Financial assets past due but not impaired | Services | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 102 101
Financial assets past due but not impaired | Services | Netherlands    
Non performing Loans [line items]    
Financial assets 57 121
Financial assets past due but not impaired | Services | Belgium    
Non performing Loans [line items]    
Financial assets 293 342
Financial assets past due but not impaired | Services | Germany    
Non performing Loans [line items]    
Financial assets 5 2
Financial assets past due but not impaired | Services | Poland    
Non performing Loans [line items]    
Financial assets 87 55
Financial assets past due but not impaired | Services | Spain    
Non performing Loans [line items]    
Financial assets 2 2
Financial assets past due but not impaired | Services | United Kingdom    
Non performing Loans [line items]    
Financial assets 1
Financial assets past due but not impaired | Services | France    
Non performing Loans [line items]    
Financial assets 3 3
Financial assets past due but not impaired | Services | Luxembourg    
Non performing Loans [line items]    
Financial assets 5 8
Financial assets past due but not impaired | Services | Rest of Europe    
Non performing Loans [line items]    
Financial assets 10 13
Financial assets past due but not impaired | Services | America    
Non performing Loans [line items]    
Financial assets 34 37
Financial assets past due but not impaired | Services | Asia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Services | Australia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Services | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Real Estate    
Non performing Loans [line items]    
Financial assets 1,434 1,053
Financial assets past due but not impaired | Real Estate | Retail Banking    
Non performing Loans [line items]    
Financial assets 603 462
Financial assets past due but not impaired | Real Estate | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 831 592
Financial assets past due but not impaired | Real Estate | Netherlands    
Non performing Loans [line items]    
Financial assets 12 40
Financial assets past due but not impaired | Real Estate | Belgium    
Non performing Loans [line items]    
Financial assets 374 297
Financial assets past due but not impaired | Real Estate | Germany    
Non performing Loans [line items]    
Financial assets 63 53
Financial assets past due but not impaired | Real Estate | Poland    
Non performing Loans [line items]    
Financial assets 114 55
Financial assets past due but not impaired | Real Estate | Spain    
Non performing Loans [line items]    
Financial assets 59 9
Financial assets past due but not impaired | Real Estate | United Kingdom    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Real Estate | France    
Non performing Loans [line items]    
Financial assets 59 36
Financial assets past due but not impaired | Real Estate | Luxembourg    
Non performing Loans [line items]    
Financial assets 90 16
Financial assets past due but not impaired | Real Estate | Rest of Europe    
Non performing Loans [line items]    
Financial assets 6 7
Financial assets past due but not impaired | Real Estate | America    
Non performing Loans [line items]    
Financial assets 606 519
Financial assets past due but not impaired | Real Estate | Asia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Real Estate | Australia    
Non performing Loans [line items]    
Financial assets 52 21
Financial assets past due but not impaired | Real Estate | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | General Industries    
Non performing Loans [line items]    
Financial assets 687 497
Financial assets past due but not impaired | General Industries | Retail Banking    
Non performing Loans [line items]    
Financial assets 451 385
Financial assets past due but not impaired | General Industries | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 236 111
Financial assets past due but not impaired | General Industries | Netherlands    
Non performing Loans [line items]    
Financial assets 153 145
Financial assets past due but not impaired | General Industries | Belgium    
Non performing Loans [line items]    
Financial assets 123 127
Financial assets past due but not impaired | General Industries | Germany    
Non performing Loans [line items]    
Financial assets 24 49
Financial assets past due but not impaired | General Industries | Poland    
Non performing Loans [line items]    
Financial assets 147 99
Financial assets past due but not impaired | General Industries | Spain    
Non performing Loans [line items]    
Financial assets 20
Financial assets past due but not impaired | General Industries | United Kingdom    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | General Industries | France    
Non performing Loans [line items]    
Financial assets 2 2
Financial assets past due but not impaired | General Industries | Luxembourg    
Non performing Loans [line items]    
Financial assets 1 7
Financial assets past due but not impaired | General Industries | Rest of Europe    
Non performing Loans [line items]    
Financial assets 170 24
Financial assets past due but not impaired | General Industries | America    
Non performing Loans [line items]    
Financial assets 17 42
Financial assets past due but not impaired | General Industries | Asia    
Non performing Loans [line items]    
Financial assets 30
Financial assets past due but not impaired | General Industries | Australia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | General Industries | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Builders & Contractors    
Non performing Loans [line items]    
Financial assets 496 577
Financial assets past due but not impaired | Builders & Contractors | Retail Banking    
Non performing Loans [line items]    
Financial assets 445 453
Financial assets past due but not impaired | Builders & Contractors | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 51 124
Financial assets past due but not impaired | Builders & Contractors | Netherlands    
Non performing Loans [line items]    
Financial assets 68 113
Financial assets past due but not impaired | Builders & Contractors | Belgium    
Non performing Loans [line items]    
Financial assets 175 181
Financial assets past due but not impaired | Builders & Contractors | Germany    
Non performing Loans [line items]    
Financial assets 5 2
Financial assets past due but not impaired | Builders & Contractors | Poland    
Non performing Loans [line items]    
Financial assets 162 135
Financial assets past due but not impaired | Builders & Contractors | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Builders & Contractors | United Kingdom    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Builders & Contractors | France    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Builders & Contractors | Luxembourg    
Non performing Loans [line items]    
Financial assets 7 22
Financial assets past due but not impaired | Builders & Contractors | Rest of Europe    
Non performing Loans [line items]    
Financial assets 78 91
Financial assets past due but not impaired | Builders & Contractors | America    
Non performing Loans [line items]    
Financial assets 32
Financial assets past due but not impaired | Builders & Contractors | Asia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Builders & Contractors | Australia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Builders & Contractors | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Retail    
Non performing Loans [line items]    
Financial assets 381 395
Financial assets past due but not impaired | Retail | Retail Banking    
Non performing Loans [line items]    
Financial assets 224 188
Financial assets past due but not impaired | Retail | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 157 207
Financial assets past due but not impaired | Retail | Netherlands    
Non performing Loans [line items]    
Financial assets 53 51
Financial assets past due but not impaired | Retail | Belgium    
Non performing Loans [line items]    
Financial assets 97 82
Financial assets past due but not impaired | Retail | Germany    
Non performing Loans [line items]    
Financial assets 39 36
Financial assets past due but not impaired | Retail | Poland    
Non performing Loans [line items]    
Financial assets 62 52
Financial assets past due but not impaired | Retail | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Retail | United Kingdom    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Retail | France    
Non performing Loans [line items]    
Financial assets 3 2
Financial assets past due but not impaired | Retail | Luxembourg    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Retail | Rest of Europe    
Non performing Loans [line items]    
Financial assets 14 14
Financial assets past due but not impaired | Retail | America    
Non performing Loans [line items]    
Financial assets 97 149
Financial assets past due but not impaired | Retail | Asia    
Non performing Loans [line items]    
Financial assets 15 7
Financial assets past due but not impaired | Retail | Australia    
Non performing Loans [line items]    
Financial assets 1
Financial assets past due but not impaired | Retail | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Utilities    
Non performing Loans [line items]    
Financial assets 600 348
Financial assets past due but not impaired | Utilities | Retail Banking    
Non performing Loans [line items]    
Financial assets 19 18
Financial assets past due but not impaired | Utilities | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 582 331
Financial assets past due but not impaired | Utilities | Netherlands    
Non performing Loans [line items]    
Financial assets 13 14
Financial assets past due but not impaired | Utilities | Belgium    
Non performing Loans [line items]    
Financial assets 8 5
Financial assets past due but not impaired | Utilities | Germany    
Non performing Loans [line items]    
Financial assets 25
Financial assets past due but not impaired | Utilities | Poland    
Non performing Loans [line items]    
Financial assets 21 21
Financial assets past due but not impaired | Utilities | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Utilities | United Kingdom    
Non performing Loans [line items]    
Financial assets 285
Financial assets past due but not impaired | Utilities | France    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Utilities | Luxembourg    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Utilities | Rest of Europe    
Non performing Loans [line items]    
Financial assets 12 18
Financial assets past due but not impaired | Utilities | America    
Non performing Loans [line items]    
Financial assets 128 153
Financial assets past due but not impaired | Utilities | Asia    
Non performing Loans [line items]    
Financial assets 109 138
Financial assets past due but not impaired | Utilities | Australia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Utilities | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals    
Non performing Loans [line items]    
Financial assets 839 233
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Retail Banking    
Non performing Loans [line items]    
Financial assets 185 132
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 654 101
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Netherlands    
Non performing Loans [line items]    
Financial assets 37 31
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Belgium    
Non performing Loans [line items]    
Financial assets 94 77
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Germany    
Non performing Loans [line items]    
Financial assets 84 13
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Poland    
Non performing Loans [line items]    
Financial assets 340 25
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | United Kingdom    
Non performing Loans [line items]    
Financial assets 1
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | France    
Non performing Loans [line items]    
Financial assets 110 64
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Luxembourg    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Rest of Europe    
Non performing Loans [line items]    
Financial assets 113 11
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | America    
Non performing Loans [line items]    
Financial assets 36 12
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Asia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Australia    
Non performing Loans [line items]    
Financial assets 24
Financial assets past due but not impaired | Chemicals, Health & Pharmaceuticals | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Telecom    
Non performing Loans [line items]    
Financial assets 163 390
Financial assets past due but not impaired | Telecom | Retail Banking    
Non performing Loans [line items]    
Financial assets 12 12
Financial assets past due but not impaired | Telecom | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 151 378
Financial assets past due but not impaired | Telecom | Netherlands    
Non performing Loans [line items]    
Financial assets 7 12
Financial assets past due but not impaired | Telecom | Belgium    
Non performing Loans [line items]    
Financial assets 1 1
Financial assets past due but not impaired | Telecom | Germany    
Non performing Loans [line items]    
Financial assets 28
Financial assets past due but not impaired | Telecom | Poland    
Non performing Loans [line items]    
Financial assets 3 3
Financial assets past due but not impaired | Telecom | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Telecom | United Kingdom    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Telecom | France    
Non performing Loans [line items]    
Financial assets 44
Financial assets past due but not impaired | Telecom | Luxembourg    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Telecom | Rest of Europe    
Non performing Loans [line items]    
Financial assets 14 13
Financial assets past due but not impaired | Telecom | America    
Non performing Loans [line items]    
Financial assets 90 56
Financial assets past due but not impaired | Telecom | Asia    
Non performing Loans [line items]    
Financial assets 4 277
Financial assets past due but not impaired | Telecom | Australia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Telecom | Africa    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Other    
Non performing Loans [line items]    
Financial assets 1,052 748
Financial assets past due but not impaired | Other | Retail Banking    
Non performing Loans [line items]    
Financial assets 387 336
Financial assets past due but not impaired | Other | Wholesale Banking    
Non performing Loans [line items]    
Financial assets 666 412
Financial assets past due but not impaired | Other | Netherlands    
Non performing Loans [line items]    
Financial assets 202 28
Financial assets past due but not impaired | Other | Belgium    
Non performing Loans [line items]    
Financial assets 198 239
Financial assets past due but not impaired | Other | Germany    
Non performing Loans [line items]    
Financial assets 117 42
Financial assets past due but not impaired | Other | Poland    
Non performing Loans [line items]    
Financial assets 60 55
Financial assets past due but not impaired | Other | Spain    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Other | United Kingdom    
Non performing Loans [line items]    
Financial assets 2 2
Financial assets past due but not impaired | Other | France    
Non performing Loans [line items]    
Financial assets 72 1
Financial assets past due but not impaired | Other | Luxembourg    
Non performing Loans [line items]    
Financial assets 17 6
Financial assets past due but not impaired | Other | Rest of Europe    
Non performing Loans [line items]    
Financial assets 90 23
Financial assets past due but not impaired | Other | America    
Non performing Loans [line items]    
Financial assets 54 46
Financial assets past due but not impaired | Other | Asia    
Non performing Loans [line items]    
Financial assets 92 128
Financial assets past due but not impaired | Other | Australia    
Non performing Loans [line items]    
Financial assets
Financial assets past due but not impaired | Other | Africa    
Non performing Loans [line items]    
Financial assets € 150 € 179