Stockholders' Equity and Stock-Based Compensation (Summary of Options Outstanding) (Details) shares in Millions	12 Months Ended
	Dec. 31, 2025 $ / shares shares
$58.59 to $88.24
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options, exercise price, lower range limit (in usd per share)	$ 58.59
Options, exercise price, upper range limit (in usd per share)	$ 88.24
Outstanding, shares (in millions) (in shares) | shares	2.2
Outstanding, average exercise price (in usd per share)	$ 80.41
Outstanding, average remaining life (in years)	2 years
Exercisable, shares (in millions) (in shares) | shares	2.2
Exercisable, average exercise price (in usd per share)	$ 80.41
$88.25 to $139.30
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options, exercise price, lower range limit (in usd per share)	88.25
Options, exercise price, upper range limit (in usd per share)	$ 139.30
Outstanding, shares (in millions) (in shares) | shares	2.9
Outstanding, average exercise price (in usd per share)	$ 118.27
Outstanding, average remaining life (in years)	3 years
Exercisable, shares (in millions) (in shares) | shares	2.9
Exercisable, average exercise price (in usd per share)	$ 118.27
$139.31 to $207.76
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options, exercise price, lower range limit (in usd per share)	139.31
Options, exercise price, upper range limit (in usd per share)	$ 207.76
Outstanding, shares (in millions) (in shares) | shares	3.2
Outstanding, average exercise price (in usd per share)	$ 198.00
Outstanding, average remaining life (in years)	7 years
Exercisable, shares (in millions) (in shares) | shares	1.2
Exercisable, average exercise price (in usd per share)	$ 187.43
$207.77 to $230.50
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options, exercise price, lower range limit (in usd per share)	207.77
Options, exercise price, upper range limit (in usd per share)	$ 230.50
Outstanding, shares (in millions) (in shares) | shares	2.3
Outstanding, average exercise price (in usd per share)	$ 221.27
Outstanding, average remaining life (in years)	7 years
Exercisable, shares (in millions) (in shares) | shares	1.0
Exercisable, average exercise price (in usd per share)	$ 220.94
$230.51 to $266.20
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options, exercise price, lower range limit (in usd per share)	230.51
Options, exercise price, upper range limit (in usd per share)	$ 266.20
Outstanding, shares (in millions) (in shares) | shares	3.0
Outstanding, average exercise price (in usd per share)	$ 249.67
Outstanding, average remaining life (in years)	7 years
Exercisable, shares (in millions) (in shares) | shares	1.6
Exercisable, average exercise price (in usd per share)	$ 248.15