Equity Investments - LNS (Details) - LNS € in Millions, $ in Millions	Dec. 04, 2017 EUR (€)	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items]
Contract extension period	9 years
Upfront fees associated with the new concession	€ 800
Concession upfront fees, installment one		€ 50
Concession upfront fees, installment two		300
Concession upfront fees, installment three		450
Prorated
Schedule of Equity Method Investments [Line Items]
Concession upfront fees, installment one		10	$ 12
Concession upfront fees, installment two		60	74
Concession upfront fees, installment three		€ 90	104
Accounts receivable from equity method investment | $			$ 14