Restricted Cash and Other Non-current Assets - Summary of Restricted Cash and Other Non-current Assets (Details) - EUR (€) € in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Restricted cash | ||
| Lease deposits and guarantees | € 54 | € 52 |
| Other | 1 | 3 |
| Other non-current assets | 14 | 10 |
| Restricted cash and other non-current assets | € 69 | € 65 |