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Appendix IV: Financial Instruments - Derivative Financial Instruments Receivable / Payable (Details)
€ in Millions
 12 Months Ended
Dec. 31, 2023
EUR (€)
£ / €
Dec. 31, 2023
EUR (€)
$ / €
Dec. 31, 2023
EUR (€)
$ / $
Dec. 31, 2023
EUR (€)
R$ / €
Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging € 135 € 135 € 135 € 135
Average foreign exchange rate 0.83 1.12 3,742.44  
Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging € (1) € (1) € (1) (1)
Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 1 1 1 1
Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 42 42 42 42
Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (55) (55) (55) (55)
Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 2 2 2 2
Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 146 146 146 146
Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging € (51) € (51) € (51) € (51)
Average foreign exchange rate 0.86 1.09 4,170.12 5.41
Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging € (49) € (49) € (49) € (49)
Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (2) (2) (2) (2)
Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 32 32 32 32
BRL | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 32 32 32 32
BRL | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 41 41 41 41
BRL | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 41 41 41 41
BRL | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (95) (95) (95) (95)
BRL | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (95) (95) (95) (95)
BRL | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (3,241) (3,241) (3,241) (3,241)
BRL | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (3,241) (3,241) (3,241) (3,241)
BRL | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
BRL | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 1 1 1 1
CLP | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 1 1 1 1
CLP | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (723) (723) (723) (723)
CLP | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (178) (178) (178) (178)
CLP | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (112) (112) (112) (112)
CLP | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (433) (433) (433) (433)
CLP | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (255) (255) (255) (255)
CLP | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (255) (255) (255) (255)
CLP | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CLP | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 446 446 446 446
COP | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 446 446 446 446
COP | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 73 73 73 73
COP | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 73 73 73 73
COP | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (892) (892) (892) (892)
COP | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (446) (446) (446) (446)
COP | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (446) (446) (446) (446)
COP | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (301) (301) (301) (301)
COP | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (301) (301) (301) (301)
COP | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
COP | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 95 95 95 95
CZK | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 95 95 95 95
CZK | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
CZK | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 2,565 2,565 2,565 2,565
EUR | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 23 23 23 23
EUR | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 2,542 2,542 2,542 2,542
EUR | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 5,515 5,515 5,515 5,515
EUR | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 5,515 5,515 5,515 5,515
EUR | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (12,909) (12,909) (12,909) (12,909)
EUR | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (80) (80) (80) (80)
EUR | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (46) (46) (46) (46)
EUR | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (2,352) (2,352) (2,352) (2,352)
EUR | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (3,728) (3,728) (3,728) (3,728)
EUR | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (6,703) (6,703) (6,703) (6,703)
EUR | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (1,391) (1,391) (1,391) (1,391)
EUR | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (1,391) (1,391) (1,391) (1,391)
EUR | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
EUR | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 1,035 1,035 1,035 1,035
GBP | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 575 575 575 575
GBP | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 460 460 460 460
GBP | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 12 12 12 12
GBP | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 12 12 12 12
GBP | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (324) (324) (324) (324)
GBP | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (324) (324) (324) (324)
GBP | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
GBP | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 96 96 96 96
JPY | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 96 96 96 96
JPY | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
JPY | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 3 3 3 3
Mexican peso | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 3 3 3 3
Mexican peso | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (275) (275) (275) (275)
Mexican peso | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (255) (255) (255) (255)
Mexican peso | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (20) (20) (20) (20)
Mexican peso | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
Mexican peso | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 28 28 28 28
PEN | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 28 28 28 28
PEN | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (382) (382) (382) (382)
PEN | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (382) (382) (382) (382)
PEN | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
PEN | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 114 114 114 114
UFC | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 114 114 114 114
UFC | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UFC | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Receive | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 13,392 13,392 13,392 13,392
USD | Receive | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 150 150 150 150
USD | Receive | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 499 499 499 499
USD | Receive | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 1,997 1,997 1,997 1,997
USD | Receive | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 3,574 3,574 3,574 3,574
USD | Receive | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Receive | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 7,172 7,172 7,172 7,172
USD | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 2,201 2,201 2,201 2,201
USD | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 2,183 2,183 2,183 2,183
USD | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 18 18 18 18
USD | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Currency swaps        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (2,926) (2,926) (2,926) (2,926)
USD | Pay | Currency swaps | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (31) (31) (31) (31)
USD | Pay | Currency swaps | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (452) (452) (452) (452)
USD | Pay | Currency swaps | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Currency swaps | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (2,443) (2,443) (2,443) (2,443)
USD | Pay | Currency swaps | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Currency swaps | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (1,894) (1,894) (1,894) (1,894)
USD | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (1,894) (1,894) (1,894) (1,894)
USD | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
USD | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Receive | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 74 74 74 74
UYU | Receive | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 74 74 74 74
UYU | Receive | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Receive | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Receive | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Receive | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Receive | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Pay | Forwards        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (31) (31) (31) (31)
UYU | Pay | Forwards | 2024        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging (31) (31) (31) (31)
UYU | Pay | Forwards | 2025        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Pay | Forwards | 2026        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Pay | Forwards | 2027        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Pay | Forwards | 2028        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging 0 0 0 0
UYU | Pay | Forwards | Subsequent years        
Disclosure of maturity analysis for derivative financial liabilities [line items]        
Derivative financial assets held for hedging € 0 € 0 € 0 € 0