Basis of Presentation & Description of Business (Details) $ / shares in Units, $ in Millions				3 Months Ended
	Sep. 19, 2023 USD ($) $ / shares shares	Jun. 12, 2023 USD ($) $ / shares shares	Apr. 14, 2023 USD ($) $ / shares shares	Oct. 29, 2023 USD ($) state branch_location shares	Jul. 30, 2023 USD ($)	Apr. 30, 2023 USD ($)
Class of Stock and Other Items [Line Items]
Number of branch locations | branch_location				320
Number of states with branches | state				48
Stock offering price (in dollars per share) | $ / shares	$ 29.015	$ 28.215	$ 22.151
Repurchase and Retirement of Class A and Class B shares and corresponding Partnership Interest | $	$ 145	$ 141	$ 332	$ 145	$ 141	$ 332
Partnership Interests held (in units)				173,340,005
Class A Common Stock
Class of Stock and Other Items [Line Items]
Stock repurchased and retired (in shares)	3,125,728	3,125,728	9,377,183
Public ownership interest (in shares)				111,576,293
Class B Common Stock
Class of Stock and Other Items [Line Items]
Stock repurchased and retired (in shares)	1,874,272	1,874,272	5,622,817
Secondary Offering | Class A Common Stock
Class of Stock and Other Items [Line Items]
Shares issued in exchange for Partnership Interests (in shares)	6,747,380	5,247,962	1,874,272
Former Limited Partners | Class A Common Stock
Class of Stock and Other Items [Line Items]
Ownership interest (in shares)				61,762,345
Continuing Limited Partners
Class of Stock and Other Items [Line Items]
Partnership Interests held (in units)				47,889,727
Continuing Limited Partners | Class A Common Stock
Class of Stock and Other Items [Line Items]
Ownership interest (in shares)				1,367
Continuing Limited Partners | Class B Common Stock
Class of Stock and Other Items [Line Items]
Ownership interest (in shares)				47,889,727
Selling Stockholders | Secondary Offering
Class of Stock and Other Items [Line Items]
Stock offering price (in dollars per share) | $ / shares	$ 29.015	$ 28.215	$ 22.151
Selling Stockholders | Secondary Offering | Class A Common Stock
Class of Stock and Other Items [Line Items]
Number of shares issued (in share)	18,000,000	14,000,000	5,000,000
Existing shares sold (in shares)	11,252,620	8,752,038	3,125,728