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
-Topic 280
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Transactions with Major Customers and Concentration of Credit Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Concentration Risk [Line Items]
Cash and cash equivalents in excess of FDIC limits	$ 360	$ 320
Maximum
Concentration Risk [Line Items]
Receivables payment terms	30 days
Sales Revenue Net \| Customer Concentration Risk \| Parent and Affiliates
Concentration Risk [Line Items]
Revenue with parent as percentage of total revenues	73.00%	75.00%	70.00%