Stockholders' Equity - Statements of Changes in Stockholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended												9 Months Ended
	Sep. 30, 2025		Jun. 30, 2025		Mar. 31, 2025		Sep. 30, 2024		Jun. 30, 2024		Mar. 31, 2024		Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Total stockholders’ equity	$ 723		$ 702		$ 620		$ 858		$ 786		$ 835		$ 723	$ 858	$ 636	$ 765
Adjustments to Additional Paid in Capital Settlement of Liability Awards and Other					44						65
Redemption Premium	(4)		2		(36)		(10)		1		(43)
Treasury Stock, Value, Acquired, Cost Method	(112)	[1]	(101)	[1]	(167)	[1]	(45)	[2]	(151)	[2]	(25)	[2]	(380)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	17		14		18		17		20		14
Net income	114		95		82		64		82		82		291	228
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	6		72		43		46		(1)		(23)
Excise Taxes	1												3	1
Common Stock [Member]
Class of Stock [Line Items]
Total stockholders’ equity	1		1		1		1		1		1		1	1	1	1
Additional Paid-in Capital [Member]
Class of Stock [Line Items]
Total stockholders’ equity	1,255		1,242		1,226		1,182		1,175		1,154		1,255	1,182	1,200	1,118
Adjustments to Additional Paid in Capital Settlement of Liability Awards and Other					44						65
Redemption Premium	(4)		2		(36)		(10)		1		(43)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	17		14		18		17		20		14
Retained Earnings [Member]
Class of Stock [Line Items]
Total stockholders’ equity	1,307		1,193		1,098		908		844		762		1,307	908	1,016	680
Net income	114		95		82		64		82		82
Treasury Stock, Common
Class of Stock [Line Items]
Total stockholders’ equity	(1,596)		(1,484)		(1,383)		(972)		(927)		(776)		(1,596)	(972)	(1,216)	(751)
Treasury Stock, Value, Acquired, Cost Method	(112)	[1]	(101)	[1]	(167)	[1]	(45)	[2]	(151)	[2]	(25)	[2]
AOCI Attributable to Parent [Member]
Class of Stock [Line Items]
Total stockholders’ equity	(244)		(250)		(322)		(261)		(307)		(306)		$ (244)	$ (261)	$ (365)	$ (283)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ 6		$ 72		$ 43		$ 46		$ (1)		$ (23)

[1] (1) Includes excise taxes of $1 million and $3 million for the three and nine months ended September 30, 2025, respectively.

[2] (1) Includes excise taxes of $1 million for the nine months ended September 30, 2024.