Equity Method Investments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]
Revenue from related parties	$ 8	$ 8
Proceeds from equity method investment	54	$ 31
Due from related parties	20		$ 23
Due to related parties	$ 6		$ 20

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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+ Details

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

+ References

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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