Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Open Market Repurchases [Member]	Common Stock [Member]	Treasury Stock [Member]	Treasury Stock [Member] Open Market Repurchases [Member]	Common Stock Shares Outstanding [Member]	Common Stock Shares Outstanding [Member] Open Market Repurchases [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]
Beginning Balance, Value at Dec. 31, 2023	$ 2,760		$ 4	$ (5,254)				$ 3,353	$ 19	$ 4,638
Beginning Balance, Shares at Dec. 31, 2023			463,715,048			113,504,311
Treasury Stock, Common, Shares at Dec. 31, 2023				(350,210,737)
Comprehensive income (loss):
Net income (loss)	109									109
Other comprehensive income (loss), net of tax	(9)								(9)
Total comprehensive income	100
Cash dividends:
Common stock	(35)									(35)
Dividend equivalent units related to employee stock-based compensation plans	(2)									(2)
Issuance of common shares	$ 2							2
Issuance of common shares, Shares	1,400,000		1,393,083			1,393,083
Stock-based compensation expense	$ 12							12
Common stock repurchased		$ (81)			$ (81)	$ (81)
Common stock repurchased, shares					(5,017,909)	(5,000,000)	5,017,909
Shares repurchased related to employee stock-based compensation plans	$ (7)			$ (7)
Shares repurchased related to employee stock-based compensation plans, Shares	(500,000)			(469,391)		(469,391)
Other	$ (1)			$ (1)
Ending Balance, Value at Jun. 30, 2024	2,748		$ 4	$ (5,343)				3,367	10	4,710
Ending Balance, Shares at Jun. 30, 2024			465,108,131			109,410,094
Treasury Stock, Common, Shares at Jun. 30, 2024				(355,698,037)
Beginning Balance, Value at Mar. 31, 2024	2,766		$ 4	$ (5,304)				3,360	15	4,691
Beginning Balance, Shares at Mar. 31, 2024			465,031,305			111,824,749
Treasury Stock, Common, Shares at Mar. 31, 2024				(353,206,556)
Comprehensive income (loss):
Net income (loss)	36									36
Other comprehensive income (loss), net of tax	(5)								(5)
Total comprehensive income	31
Cash dividends:
Common stock	$ (17)									(17)
Issuance of common shares, Shares	100,000		76,826			76,826
Stock-based compensation expense	$ 7							7
Common stock repurchased		(38)			$ (38)	$ (38)
Common stock repurchased, shares					(2,466,060)	(2,500,000)	(2,466,060)
Shares repurchased related to employee stock-based compensation plans, Shares	0			(25,421)		(25,421)
Other	$ (1)			$ (1)
Ending Balance, Value at Jun. 30, 2024	2,748		$ 4	$ (5,343)				3,367	10	4,710
Ending Balance, Shares at Jun. 30, 2024			465,108,131			109,410,094
Treasury Stock, Common, Shares at Jun. 30, 2024				(355,698,037)
Beginning Balance, Value at Dec. 31, 2024	$ 2,641		$ 4	$ (5,443)				3,380	3	4,697
Beginning Balance, Shares at Dec. 31, 2024			465,308,901			103,025,557
Treasury Stock, Common, Shares at Dec. 31, 2024	362,000,000			(362,283,344)
Comprehensive income (loss):
Net income (loss)	$ 11									11
Other comprehensive income (loss), net of tax	(3)								(3)
Total comprehensive income	8
Cash dividends:
Common stock	(32)									(32)
Dividend equivalent units related to employee stock-based compensation plans	(2)									(2)
Issuance of common shares	$ 2							2
Issuance of common shares, Shares	1,300,000		1,287,528			1,287,528
Stock-based compensation expense	$ 12							12
Common stock repurchased		(59)			$ (59)	$ (59)
Common stock repurchased, shares					(4,463,392)	(4,500,000)	(4,463,392)
Shares repurchased related to employee stock-based compensation plans	$ (6)			$ (6)
Shares repurchased related to employee stock-based compensation plans, Shares	(400,000)			(418,655)		(418,655)
Ending Balance, Value at Jun. 30, 2025	$ 2,564		$ 4	$ (5,508)				3,394	0	4,674
Ending Balance, Shares at Jun. 30, 2025			466,596,429			99,431,038
Treasury Stock, Common, Shares at Jun. 30, 2025	367,000,000			(367,165,391)
Beginning Balance, Value at Mar. 31, 2025	$ 2,589		$ 4	$ (5,484)				3,390	2	4,677
Beginning Balance, Shares at Mar. 31, 2025			466,581,434			101,334,478
Treasury Stock, Common, Shares at Mar. 31, 2025				(365,246,956)
Comprehensive income (loss):
Net income (loss)	14									14
Other comprehensive income (loss), net of tax	(2)								(2)
Total comprehensive income	12
Cash dividends:
Common stock	(16)									(16)
Dividend equivalent units related to employee stock-based compensation plans	$ (1)									(1)
Issuance of common shares, Shares	0		14,995			14,995
Stock-based compensation expense	$ 4							4
Common stock repurchased		$ (24)			$ (24)	$ (24)
Common stock repurchased, shares					(1,910,892)	(1,900,000)	(1,910,892)
Shares repurchased related to employee stock-based compensation plans, Shares	0			(7,543)		(7,543)
Ending Balance, Value at Jun. 30, 2025	$ 2,564		$ 4	$ (5,508)				$ 3,394	$ 0	$ 4,674
Ending Balance, Shares at Jun. 30, 2025			466,596,429			99,431,038
Treasury Stock, Common, Shares at Jun. 30, 2025	367,000,000			(367,165,391)