XML 162 R103.htm IDEA: XBRL DOCUMENT v3.20.4
Non-current and current financial debts - Maturity of borrowings (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Apr. 09, 2019
Disclosure of detailed information about borrowings [line items]      
Financial debts $ 4,118.0 $ 3,479.0 $ 3,500.0
Nominal amount - Current and non-current financial debt [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 4,111.0 3,463.0  
Derivatives [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 7.0 16.0  
Gross carrying amount [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 4,150.0 3,508.0  
Gross carrying amount [member] | Not later than one year [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 169.0 261.0  
Gross carrying amount [member] | Between one and five years [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 1,231.0 1,247.0  
Gross carrying amount [member] | Later than five years [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 2,750.0 2,000.0  
Gross carrying amount [member] | Nominal amount - Current and non-current financial debt [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 4,143.0 3,492.0  
Gross carrying amount [member] | Nominal amount - Current and non-current financial debt [member] | Not later than one year [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 162.0 245.0  
Gross carrying amount [member] | Nominal amount - Current and non-current financial debt [member] | Between one and five years [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 1,231.0 1,247.0  
Gross carrying amount [member] | Nominal amount - Current and non-current financial debt [member] | Later than five years [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 2,750.0 2,000.0  
Gross carrying amount [member] | Derivatives [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 7.0 16.0  
Gross carrying amount [member] | Derivatives [member] | Not later than one year [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 7.0 16.0  
Gross carrying amount [member] | Derivatives [member] | Between one and five years [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 0.0 0.0  
Gross carrying amount [member] | Derivatives [member] | Later than five years [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 0.0 0.0  
Unamortized debt discount and issuance costs [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 32.0 29.0  
Unamortized debt discount and issuance costs [member] | Nominal amount - Current and non-current financial debt [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts 32.0 29.0  
Unamortized debt discount and issuance costs [member] | Derivatives [member]      
Disclosure of detailed information about borrowings [line items]      
Financial debts $ 0.0 $ 0.0