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Other information - Supplemental Cash Flow Information (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Investment in consolidated subsidiaries and businesses |  |  |
Current assets | € 408 | € 147 |
Non-current assets | 1,985 | 1,981 |
Net borrowings | (91) | (541) |
Current and non-current liabilities | (622) | (366) |
Net effect of investments | 1,680 | 1,221 |
Goodwill | 25 | 482 | € 1,574
Fair value of investments held before the acquisition of control | (271) | (21) |
Non-controlling interests | (2) | (15) |
Purchase price | 1,432 | 1,667 |
Less: Cash and cash equivalents acquired | (155) | (31) |
Consolidated subsidiaries and businesses net of cash and cash equivalent disposed of before business combination | 1,277 | 1,636 | 1,901
Disposal of consolidated subsidiaries and businesses |  |  |
Current assets | 130 | 1,377 |
Non-current assets | 153 | 8,618 |
Net borrowings | 180 | (2,085) |
Current and non-current liabilities | (124) | (2,351) |
Net effect of disposals | 339 | 5,559 |
Current value of the stake held for business combinations | (580) | (5,726) |
Reclassification among other items of OCI | (7) | (918) |
Gain on disposal of business combinations | 427 | 2,704 |
Fair value of share capital held after the sale of control | 414 |  |
Credits for divestments | (173) | (1,609) |
Selling price | 420 | 10 |
Less: Cash and cash equivalents sold | (25) | (70) |
Consolidated subsidiaries and businesses net of cash and cash equivalent disposed of | € 395 | € (60) | 76
Business combinations excluding Union Fenosa Gas |  |  |
Investment in consolidated subsidiaries and businesses |  |  |
Current assets |  |  | 262
Non-current assets |  |  | 1,124
Net borrowings |  |  | (486)
Current and non-current liabilities |  |  | (349)
Net effect of investments |  |  | 551
Fair value of investments held before the acquisition of control |  |  | (99)
Non-controlling interests |  |  | (4)
Purchase price |  |  | 2,022
Less: Cash and cash equivalents acquired |  |  | (121)
Consolidated subsidiaries and businesses net of cash and cash equivalent disposed of before business combination |  |  | 1,901
Disposal of consolidated subsidiaries and businesses |  |  |
Current assets |  |  | 2
Net effect of disposals |  |  | 2
Selling price |  |  | 2
Consolidated subsidiaries and businesses net of cash and cash equivalent disposed of |  |  | 2
Union Fenosa Gas SA |  |  |
Investment in consolidated subsidiaries and businesses |  |  |
Value of investment sold |  |  | 232
Current assets |  |  | 370
Non-current assets |  |  | 378
Net borrowings |  |  | (128)
Current and non-current liabilities |  |  | (420)
Net effect of investments |  |  | 200
Less: Cash and cash equivalents acquired |  |  | 42
Disposal of consolidated subsidiaries and businesses |  |  |
Net effect of disposals |  |  | 32
Consolidated subsidiaries and businesses net of cash and cash equivalent disposed of |  |  | € 74

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