CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions		Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Gain
Beginning balance at Dec. 31, 2020		$ 2,256	$ 0	$ 27	$ 1,133	$ 1,913	$ (817)
Beginning balance (in shares) at Dec. 31, 2020				53,732,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)		647				519	128
Common stock dividends declared		(125)				(125)
Common stock issued under employee stock award and stock purchase plans and other (in shares)				792,000
Common stock issued under employee stock award and stock purchase plans and other		$ 30			30
Common stock repurchased( in shares)		(700,000)		(735,000)
Common stock repurchased		$ (57)			(16)	(41)
Share-based compensation expense		47			47
Ending balance at Dec. 31, 2021		2,798	0	$ 27	1,194	2,266	(689)
Ending balance (in shares) at Dec. 31, 2021				53,789,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)		760				867	(107)
Common stock dividends declared		(124)				(124)
Common stock issued under employee stock award and stock purchase plans and other (in shares)	[1]			(549,000)
Common stock issued under employee stock award and stock purchase plans and other	[1]	$ 14			14
Common stock repurchased( in shares)		(7,000,000.0)		(6,953,000)
Common stock repurchased		$ (557)		$ (4)	(62)	(491)
Share-based compensation expense		46			46
Ending balance at Dec. 31, 2022		$ 2,937	0	$ 23	1,192	2,518	(796)
Ending balance (in shares) at Dec. 31, 2022		46,286,664		46,287,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)		$ 547				406	141
Common stock dividends declared		(125)				(125)
Common stock issued under employee stock award and stock purchase plans and other (in shares)				1,176,000
Common stock issued under employee stock award and stock purchase plans and other		$ 3		$ 1	1	1
Common stock repurchased( in shares)		(3,600,000)		(3,561,000)
Common stock repurchased		$ (337)		$ (2)	(89)	(246)
Share-based compensation expense		44			44
Ending balance at Dec. 31, 2023		$ 3,069	$ 0	$ 22	$ 1,148	$ 2,554	$ (655)
Ending balance (in shares) at Dec. 31, 2023		43,902,065		43,902,000

[1] We reversed the issuance of approximately 1.3 million unvested restricted shares. These shares will be issued and released upon satisfaction of the applicable vesting conditions. The reversal of the shares did not impact earnings per share.