Stock Based Compensation Plans (Summary of Stock Options Activity) (Details) - Equity Option [Member] - USD ($) $ / shares in Units, $ in Millions		7 Months Ended	12 Months Ended
		Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, as of December 31			705,749	0
Granted		770,500	778,500
Exercised			(35,251)
Forfeited			37,500
Options Outstanding, as of December 31, Weighted Average Exercise Price			$ 350.74	$ 0
Options Granted, Weighted Average Exercise Price			349.17
Options Exercised, Weighted Average Exercise Price			333.94
Options Forfeited, Weighted Average Exercise Price			$ (333.94)
Options Outstanding, Intrinsic Value	[1]		$ 237.8
Options Outstanding, Weighted Average Remaining Contractual Term			5 years 8 months 12 days
Options Exercisable, Number			120,251
Options Exercisable, Weighted Average Exercise Price			$ 333.94
Options Exercisable, Intrinsic Value	[1]		$ 42.5
Options Exercisable, Weighted Average Remaining Contractual Term			4 years 8 months 12 days
Options, Nonvested, Number			585,498
Options Nonvested, Weighted Average Exercise Price			$ 354.18
Options, Nonvested, Aggregate Intrinsic Value	[1]		$ 195.3
Options Nonvested, Weighted Average Remaining Contractual Term			5 years 10 months 24 days

[1] The intrinsic value of stock options is the amount by which the market price of the stock as of December 31, 2021 exceeded the exercise price of the options