Employee Benefits - Employee Stock Ownership, 401(K) and Deferred Compensation Plan - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Employee Stock Ownership, 401(K) And Deferred Compensation Plan
Annual expenses for incentive plans	$ 38	$ 24	$ 39
ESOP and 401(k) Plans
Employee Stock Ownership, 401(K) And Deferred Compensation Plan
Vesting period of profit sharing contributions	3 years
Expenses recognized	$ 23	$ 18	$ 18
Employee Stock Ownership Plan (ESOP)
Employee Stock Ownership, 401(K) And Deferred Compensation Plan
Shares purchased under defined contribution plan	65,773	87,367	65,815
Average price of shares purchased (in dollars per share)	$ 136.42	$ 103.01	$ 107.95
Aggregate price of shares purchased	$ 9	$ 9	$ 7
Shares held by the ESOP	2,447,357
Employee 401(K) Plan
Employee Stock Ownership, 401(K) And Deferred Compensation Plan
Employer contribution as a percent of eligible compensation	3.00%
Vesting percentage in basic and voluntary contributions	100.00%
Deferred Compensation Plan
Employee Stock Ownership, 401(K) And Deferred Compensation Plan
Assets held under trust	$ 61