Share-Based Compensation (Summary of Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of Stock Options
Outstanding at beginning of period (in shares)	806,451	880,059	1,137,306
Granted (in shares)	613,872
Exercised (in shares)		(73,227)	(255,585)
Forfeited (in shares)		(381)	(1,662)
Outstanding at end of period (in shares)	1,420,323	806,451	880,059
Exercisable (in shares)	806,451	800,000
Weighted-Average Exercise Price
Weighted average exercise price, outstanding, beginning of period (in dollars per share)	$ 22.23	$ 21.07	$ 18.11
Granted (in dollars per share)	67.49
Exercised (in dollars per share)		8.43	7.97
Forfeited (in dollars per share)		8.43	6.98
Weighted average exercise price, outstanding, end of period (in dollars per share)	41.79	22.23	$ 21.07
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.23	$ 22.23
Weighted-average remaining contractual term, Outstanding (in years)	6 years 2 months 12 days	5 years	5 years 6 months
Weighted-average remaining contractual term, Exercisable (in years)	4 years
Aggregate Intrinsic Value (in millions)	$ 32	$ 39	$ 20
Aggregate Intrinsic Value, exercisable (in millions)	$ 32

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.