CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance at beginning of period at Dec. 31, 2020	$ 4,959	$ 107	$ 3	$ 4,087	$ 869	$ (39)	$ (68)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	382				405	(23)
Dividends declared:
Preferred stock	(8)				(8)
Common stock	(156)				(156)
Issuance of common stock	(3)			3			(6)
Repurchase of common stock	(43)						(43)
Restricted stock compensation	19			19
Balance at end of period at Dec. 31, 2021	5,150	107	3	4,109	1,110	(62)	(117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	144				439	(295)
Dividends declared:
Preferred stock	(8)				(8)
Common stock	(171)				(171)
Issuance of common stock	(6)			1			(7)
Issuance of common stock – acquisitions	570		1	569
Repurchase of common stock	(43)						(43)
Restricted stock compensation	17			17
Balance at end of period at Dec. 31, 2022	5,653	107	4	4,696	1,370	(357)	(167)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	607				485	122
Dividends declared:
Preferred stock	(8)				(8)
Common stock	(174)				(174)
Issuance of common stock	(10)			(22)	(4)		16
Repurchase of common stock	(36)						(36)
Restricted stock compensation	18			18
Balance at end of period at Dec. 31, 2023	$ 6,050	$ 107	$ 4	$ 4,692	$ 1,669	$ (235)	$ (187)