For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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Period Type:	duration

Transactions with Major Customers and Concentration of Credit Risk - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Concentration Risk [Line Items]
Cash and cash equivalents in excess of FDIC limits	$ 320	$ 289
Maximum
Concentration Risk [Line Items]
Receivables payment terms	30 days
Sales Revenue Net \| Parent and Affiliates
Concentration Risk [Line Items]
Revenue with parent as percentage of total revenues	75.00%	70.00%	60.00%