Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Feb. 27, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Nov. 07, 2024	Nov. 21, 2021
Common Stock Activity [Line Items]
Stock repurchase program, authorized amount					$ 10,000	$ 5,000
Stock repurchased during period, shares		25,800,000
Stock repurchased during period, value		$ 3,200
Stock repurchase program, remaining authorized repurchase amount		5,800
Estimated federal excise taxes		$ 30
Common stock dividends declared (in USD per share)		$ 3.705	$ 5.885	$ 8.875
Series E Preferred Stock
Common Stock Activity [Line Items]
Series E Preferred stock, shares authorized (in shares)		3,000,000
Series E Preferred stock, shares issued (in shares)		0
Series E Preferred stock, shares outstanding (in shares)		0
Common Class A | Subsequent Event
Common Stock Activity [Line Items]
Common stock dividends declared (in USD per share)	$ 0.975