Revenue Recognition - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Contract with customer, liability	$ 3,500,000,000
Accounts receivable, credit loss expense (reversal)	$ 0	$ (4,400,000)	$ (200,000)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, percentage	46.00%
Revenue, remaining performance obligation, period	12 months
Trade Accounts Receivable
Disaggregation of Revenue [Line Items]
Accounts receivable, allowance for credit losses	$ 0	0
Miscellaneous Receivables
Disaggregation of Revenue [Line Items]
Accounts receivable, allowance for credit losses	$ 0	$ 0