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Shareholders' Equity - Repurchase Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022
Class A common stock
Class of Stock [Line Items]
Shares repurchased (in shares)	772	3,349
Weighted-average price per share (in USD per share)	$ 35.52	$ 46.13
Total purchase price	$ 27	$ 154
Class C capital stock
Class of Stock [Line Items]
Shares repurchased (in shares)	4,225	13,943
Weighted-average price per share (in USD per share)	$ 35.18	$ 44.40
Total purchase price	$ 149	$ 619

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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