Stock-Based Compensation and Employee Benefit Plans (Summary of Stock Award Activity Under Incentive Plan) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of year, Shares	55
Outstanding, beginning of year, Grant Date Fair Value	$ 1,396.78
Granted, Shares	37
Granted, Grant Date Fair Value	$ 1,666.18	$ 1,559.73	$ 1,492.15
Vested, Shares	(23)
Vested, Grant Date Fair Value	$ 1,211.81
Forfeited, Shares	(9)
Forfeited, Grant Date Fair Value	$ 1,581.08
Outstanding, end of year, Shares	60	55
Outstanding, end of year, Grant Date Fair Value	$ 1,604.25	$ 1,396.78
Vested and expected to vest, end of year, Shares	52
Vested and expected to vest, end of year, Grant Date Fair Value	$ 1,600.97
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of year, Shares	69
Outstanding, beginning of year, Grant Date Fair Value	$ 1,194.80
Granted, Shares	24
Granted, Grant Date Fair Value	$ 1,606.91	$ 1,569.39	$ 1,479.55
Vested, Shares	(33)
Vested, Grant Date Fair Value	$ 857.00
Expired, Shares	(4)
Expired, Grant Date Fair Value	$ 1,562.35
Outstanding, end of year, Shares	56	69
Outstanding, end of year, Grant Date Fair Value	$ 1,562.14	$ 1,194.80
Vested and expected to vest, end of year, Shares	114
Vested and expected to vest, end of year, Grant Date Fair Value	$ 1,557.11