v3.25.0.1
Financial risk management and financial instruments - Summary of Major Security Type, Financial Assets and Liabilities that are Measured at Fair Value on Recurring Basis and Category Using Fair Value Hierarchy (Details) - EUR (€)
€ in Millions
Dec. 31, 2024
Dec. 31, 2023
Financial assets at fair value    
Total financial assets at fair value by level € 7,866 € 4,435
Financial liabilities at fair value    
Total financial liabilities at fair value by level 1,559 1,220
Exchangeable Notes    
Financial liabilities at fair value    
Total financial liabilities at fair value by level 1,539 1,203
Derivatives (not designated for hedging): | Warrants    
Financial liabilities at fair value    
Total financial liabilities at fair value by level   3
Foreign exchange forwards | Derivatives (designated for hedging):    
Financial assets at fair value    
Total financial assets at fair value by level 14 9
Financial liabilities at fair value    
Total financial liabilities at fair value by level 20 14
Cash equivalents: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 3,550 2,111
Short term investments: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 263 181
Short term investments: | Government securities    
Financial assets at fair value    
Total financial assets at fair value by level 685 247
Short term investments: | Corporate notes    
Financial assets at fair value    
Total financial assets at fair value by level 908 320
Short term investments: | Collateralized reverse purchase agreements    
Financial assets at fair value    
Total financial assets at fair value by level 695 241
Short term investments: | Fixed income funds    
Financial assets at fair value    
Total financial assets at fair value by level 116 111
Long term investments    
Financial assets at fair value    
Total financial assets at fair value by level 1,635 1,215
Level 1    
Financial assets at fair value    
Total financial assets at fair value by level 6,155 3,796
Financial liabilities at fair value    
Total financial liabilities at fair value by level 0 0
Level 1 | Exchangeable Notes    
Financial liabilities at fair value    
Total financial liabilities at fair value by level 0 0
Level 1 | Derivatives (not designated for hedging): | Warrants    
Financial liabilities at fair value    
Total financial liabilities at fair value by level   0
Level 1 | Foreign exchange forwards | Derivatives (designated for hedging):    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Financial liabilities at fair value    
Total financial liabilities at fair value by level 0 0
Level 1 | Cash equivalents: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 3,550 2,111
Level 1 | Short term investments: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 263 181
Level 1 | Short term investments: | Government securities    
Financial assets at fair value    
Total financial assets at fair value by level 676 239
Level 1 | Short term investments: | Corporate notes    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 1 | Short term investments: | Collateralized reverse purchase agreements    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 1 | Short term investments: | Fixed income funds    
Financial assets at fair value    
Total financial assets at fair value by level 116 111
Level 1 | Long term investments    
Financial assets at fair value    
Total financial assets at fair value by level 1,550 1,154
Level 2    
Financial assets at fair value    
Total financial assets at fair value by level 1,626 578
Financial liabilities at fair value    
Total financial liabilities at fair value by level 20 14
Level 2 | Exchangeable Notes    
Financial liabilities at fair value    
Total financial liabilities at fair value by level 0 0
Level 2 | Derivatives (not designated for hedging): | Warrants    
Financial liabilities at fair value    
Total financial liabilities at fair value by level   0
Level 2 | Foreign exchange forwards | Derivatives (designated for hedging):    
Financial assets at fair value    
Total financial assets at fair value by level 14 9
Financial liabilities at fair value    
Total financial liabilities at fair value by level 20 14
Level 2 | Cash equivalents: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 2 | Short term investments: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 2 | Short term investments: | Government securities    
Financial assets at fair value    
Total financial assets at fair value by level 9 8
Level 2 | Short term investments: | Corporate notes    
Financial assets at fair value    
Total financial assets at fair value by level 908 320
Level 2 | Short term investments: | Collateralized reverse purchase agreements    
Financial assets at fair value    
Total financial assets at fair value by level 695 241
Level 2 | Short term investments: | Fixed income funds    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 2 | Long term investments    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 3    
Financial assets at fair value    
Total financial assets at fair value by level 85 61
Financial liabilities at fair value    
Total financial liabilities at fair value by level 1,539 1,206
Level 3 | Exchangeable Notes    
Financial liabilities at fair value    
Total financial liabilities at fair value by level 1,539 1,203
Level 3 | Derivatives (not designated for hedging): | Warrants    
Financial liabilities at fair value    
Total financial liabilities at fair value by level   3
Level 3 | Foreign exchange forwards | Derivatives (designated for hedging):    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Financial liabilities at fair value    
Total financial liabilities at fair value by level 0 0
Level 3 | Cash equivalents: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 3 | Short term investments: | Money market funds    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 3 | Short term investments: | Government securities    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 3 | Short term investments: | Corporate notes    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 3 | Short term investments: | Collateralized reverse purchase agreements    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 3 | Short term investments: | Fixed income funds    
Financial assets at fair value    
Total financial assets at fair value by level 0 0
Level 3 | Long term investments    
Financial assets at fair value    
Total financial assets at fair value by level € 85 € 61