Subsequent Events (Details) - USD ($) shares in Millions	Oct. 21, 2020	Sep. 30, 2020	Sep. 25, 2020
Treasury Loan Restatement Agreement, CARES Act | Line of Credit | Subsequent Event
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity	$ 7,500,000,000
Line of credit facility, increase in maximum borrowing capacity	$ 2,000,000,000.0
Treasury Loan Agreement, CARES Act | Line of Credit
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity		$ 5,500,000,000	$ 5,500,000,000
Treasury Loan Warrants | Subsequent Event
Subsequent Event [Line Items]
Warrants, number of warrant shares of common stock (up to)	60.0