Stock-Based Compensation (Narrative) (Details) - USD ($)		12 Months Ended
	Mar. 21, 2019	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Stock-Based Compensation [Line Items]
Number of shares of common stock authorized		14,500,000
Number of shares of common stock remaining for future grant		8,761,706
Stock-based compensation expense		$ 26,000,000	$ 26,000,000	$ 22,000,000
Stock-based compensation expense, net of tax		20,000,000	$ 22,000,000	$ 19,000,000
Total unrecognized compensation costs related to non-vested stock options, restricted share units and performance shares		$ 35,000,000
Weighted-average period of recognition of stock-based compensation cost		2 years 21 days
Employee Stock Purchase Plan [Member]
Stock-Based Compensation [Line Items]
Number of shares of common stock authorized	1,250,000
Number of shares of common stock remaining for future grant		1,048,057
Maximum percentage of current fair market value eligible employees may purchase	15.00%
Number of shares of common stock offered		26,425	31,288	53,353
Stock Options [Member]
Stock-Based Compensation [Line Items]
Vesting period		4 years
Stock Options [Member] | Omnibus Incentive Plan [Member]
Stock-Based Compensation [Line Items]
Grants (in shares)		576,260	661,231	568,623
Granted (in dollars per share)		$ 31.94	$ 26.67	$ 28.64
Weighted-average grant-date fair value (in dollars per share)		$ 14.81	$ 12.49	$ 14.54
Forfeiture rate (as a percent)		15.00%
Stock Options [Member] | Omnibus Incentive Plan [Member] | Chief Executive Officer [Member]
Stock-Based Compensation [Line Items]
Forfeiture rate (as a percent)		0.00%
Restricted Stock Units [Member]
Stock-Based Compensation [Line Items]
Vesting period		3 years
Restricted Stock Units [Member] | Omnibus Incentive Plan [Member]
Stock-Based Compensation [Line Items]
Forfeiture rate (as a percent)		15.00%
Total intrinsic value of stock options exercised		$ 16,000,000	$ 13,000,000	$ 13,000,000
Granted (in shares)		812,939	920,369	1,146,733
Granted, Weighted Average Grant Date Fair Value (in dollars per share)		$ 32.16	$ 26.6	$ 28
Vested (in shares)		541,799
Forfeited (in shares)		245,921
Unvested (in shares)		1,311,392	1,286,173
Restricted Stock Units [Member] | Omnibus Incentive Plan [Member] | Chief Executive Officer [Member]
Stock-Based Compensation [Line Items]
Forfeiture rate (as a percent)		0.00%
Performance Options [Member]
Stock-Based Compensation [Line Items]
Forfeiture rate (as a percent)		15.00%
Total intrinsic value of stock options exercised		$ 3,000,000
Granted (in shares)		0	652,004	272,503
Granted, weighted-average exercise price			26.42	24.74
Granted, Weighted Average Grant Date Fair Value (in dollars per share)			$ 10.4	$ 11.5
Unvested (in shares)		645,194	767,144
Vesting period			9 months 18 days	1 year 7 months 6 days
Performance Options [Member] | Chief Executive Officer [Member]
Stock-Based Compensation [Line Items]
Forfeiture rate (as a percent)		0.00%
Performance Shares [Member]
Stock-Based Compensation [Line Items]
Forfeiture rate (as a percent)		15.00%
Granted (in shares)		217,527		285,801
Granted, Weighted Average Grant Date Fair Value (in dollars per share)		$ 31.95		$ 28.03
Total fair value of performance shares vested		$ 1,000,000
Vested (in shares)		17,591	0	0
Forfeited (in shares)		60,221
Unvested (in shares)		273,207	133,492
Vesting period		3 years
Performance Shares [Member] | Chief Executive Officer [Member]
Stock-Based Compensation [Line Items]
Forfeiture rate (as a percent)		0.00%
Maximum [Member] | Stock Options [Member] | Omnibus Incentive Plan [Member]
Stock-Based Compensation [Line Items]
Total intrinsic value of stock options exercised		$ 6,000,000	$ 1,000,000	$ 1,000,000