XML 482 R102.htm IDEA: XBRL DOCUMENT v3.24.0.1
Long-term debt and interest and other costs - Estimated Fair Value of Eurobonds (Detail) - Eurobonds - EUR (€)
€ in Millions
Dec. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Principal amount € 4,750.0 € 4,500.0
Carrying amount 4,610.4 4,235.8
Long-term debt 4,496.2 4,072.8
Amortized Costs Eurobonds    
Debt Instrument [Line Items]    
Carrying amount 4,731.7 4,479.0
Fair Value Adjustment Interest Rate Swaps    
Debt Instrument [Line Items]    
Carrying amount € (121.3) € (243.2)