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Intangible assets - Other intangible assets - Disclosure of detailed information about intangible assets (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | € 5,821 | € 5,854 | € 4,904
Net additions and disposals | 1,714 | 2,104 | 2,197
Change in scope of consolidation | (8) | (2) | 181
Amortization and impairment | (1,955) | (1,853) | (1,439)
Application of amortization and impairment | 0 | 0 | 0
Exchange differences and other | (222) | (282) | 11
Intangible assets, end balance | € 5,350 | € 5,821 | € 5,854
IT developments | Minimum |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life measured as period of time, intangible assets other than goodwill | 3 years | 3 years | 3 years
IT developments | Maximum |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life measured as period of time, intangible assets other than goodwill | 10 years | 10 years | 10 years
Gross carrying amount |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | € 15,261 | € 14,773 | € 12,502
Net additions and disposals | 1,714 | 2,104 | 2,197
Change in scope of consolidation | (20) | (8) | 176
Application of amortization and impairment | (1,286) | (1,169) | (230)
Exchange differences and other | (1,179) | (439) | 128
Intangible assets, end balance | 14,490 | 15,261 | 14,773
Gross carrying amount | Brand names |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | 32 | 40 | 33
Net additions and disposals | 0 | 0 | 0
Change in scope of consolidation | 0 | 0 | 8
Application of amortization and impairment | 0 | 0 | (2)
Exchange differences and other | 0 | (8) | 1
Intangible assets, end balance | 32 | 32 | 40
Gross carrying amount | IT developments |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | 13,322 | 12,867 | 10,721
Net additions and disposals | 1,713 | 2,104 | 2,197
Change in scope of consolidation | (7) | (8) | 18
Application of amortization and impairment | (1,286) | (1,169) | (196)
Exchange differences and other | (1,084) | (472) | 127
Intangible assets, end balance | 12,658 | 13,322 | 12,867
Gross carrying amount | Other |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | 1,907 | 1,866 | 1,748
Net additions and disposals | 1 | 0 | 0
Change in scope of consolidation | (13) | 0 | 150
Application of amortization and impairment | 0 | 0 | (32)
Exchange differences and other | (95) | 41 | 0
Intangible assets, end balance | 1,800 | 1,907 | 1,866
Accumulated depreciation |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | (9,235) | (8,851) | (7,554)
Net additions and disposals | 0 | 0 | 0
Change in scope of consolidation | 12 | 6 | 5
Amortization and impairment | (1,847) | (1,626) | (1,386)
Application of amortization and impairment | 1,228 | 1,062 | 209
Exchange differences and other | 795 | 174 | (125)
Intangible assets, end balance | (9,047) | (9,235) | (8,851)
Accumulated depreciation | IT developments |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | (8,312) | (8,078) | (6,866)
Net additions and disposals | 0 | 0 | 0
Change in scope of consolidation | 6 | 6 | 0
Amortization and impairment | (1,715) | (1,546) | (1,294)
Application of amortization and impairment | 1,228 | 1,062 | 177
Exchange differences and other | 723 | 244 | (95)
Intangible assets, end balance | (8,070) | (8,312) | (8,078)
Accumulated depreciation | Other |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | (923) | (773) | (688)
Net additions and disposals | 0 | 0 | 0
Change in scope of consolidation | 6 | 0 | 5
Amortization and impairment | (132) | (80) | (92)
Application of amortization and impairment | 0 | 0 | 32
Exchange differences and other | 72 | (70) | (30)
Intangible assets, end balance | (977) | (923) | (773)
Accumulated impairment |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Intangible assets, beginning balance | (205) | (68) | (44)
Net additions and disposals | 0 | 0 | 0
Change in scope of consolidation | 0 | 0 | 0
Amortization and impairment | (108) | (227) | (53)
Of which addition | (108) | (227) | (53)
Of which Liberation |  | 0 | 0
Application of amortization and impairment | 58 | 107 | 21
Exchange differences and other | 162 | (17) | 8
Intangible assets, end balance | € (93) | € (205) | € (68)

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