Stock-Based Compensation (Summary of Restricted Stock Unit and Performance Based Restricted Stock Unit Activity) (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2024 $ / shares shares
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Outstanding | shares	267
Number of Shares, Granted | shares	271
Number of Shares, Vested | shares	(117)
Number of Shares, Forfeited/canceled | shares	(17)
Number of Shares, Outstanding | shares	404
Weighted-Average Grant Date Fair Value per Share, Outstanding | $ / shares	$ 269.08
Weighted-Average Grant Date Fair Value per Share, Granted | $ / shares	216.26
Weighted-Average Grant Date Fair Value per Share, Vested | $ / shares	271.06
Weighted-Average Grant Date Fair Value per Share, Forfeited/canceled | $ / shares	240.54
Weighted-Average Grant Date Fair Value per Share, Outstanding | $ / shares	$ 234.15
Performance Stock Units (PSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Outstanding | shares	368
Number of Shares, Granted | shares	59
Number of Shares, Adjustment | shares	11
Number of Shares, Vested | shares	(155)
Number of Shares, Forfeited/canceled | shares	(5)
Number of Shares, Outstanding | shares	278
Weighted-Average Grant Date Fair Value per Share, Outstanding | $ / shares	$ 298.46
Weighted-Average Grant Date Fair Value per Share, Granted | $ / shares	291.51
Weighted-Average Grant Date Fair Value per Share, Adjustment | $ / shares	236.63
Weighted-Average Grant Date Fair Value per Share, Vested | $ / shares	236.32
Weighted-Average Grant Date Fair Value per Share, Forfeited/canceled | $ / shares	361.20
Weighted-Average Grant Date Fair Value per Share, Outstanding | $ / shares	$ 313.75
Performance period	3 years