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Equity - Issuance of Class B Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended
	Sep. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Jul. 31, 2020
Common Class B
Subsidiary, Sale of Stock [Line Items]
Number of shares issued in transaction (in shares)	54,744,525
Common stock par value (in dollars per share)		$ 0.01	$ 0.01	$ 0.01
Consideration received on transaction	$ 450
Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock par value (in dollars per share)		$ 0.01	$ 0.01

X

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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X

- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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