Employee Benefit Plans (Narrative) (Details) - USD ($) shares in Millions, $ in Millions		12 Months Ended
	Jul. 01, 2019	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Treasury stock, shares repurchased		4.9		9.2		8.2
Cash payments for Restricted Stock Units		$ 23.5		$ 22.1		$ 10.7
Aggregate intrinsic value of stock options outstanding and exercisable		171.7
Options, vested and expected to vest, exercisable, aggregate intrinsic value		$ 121.3
Weighted average remaining life of stock options outstanding and exercisable		6 years
Options, exercisable, weighted average remaining contractual term		5 years
Aggregate intrinsic value for options exercised		$ 80.6		80.8		58.6
Supplemental officers retirement plan freeze date	Jul. 01, 2019
Defined benefit plan, accumulated benefit obligation		1,712.1		1,765.3
Accumulated other comprehensive income net gains (losses), after tax		293.0
Accumulated other comprehensive income net prior service cost (credit), after tax		$ 5.5
Minimum interest crediting rate		3.25%
Plan assets		$ 1,854.4		1,800.5		$ 2,306.3
Employer contributions		17.0		10.7
Expected future employer contributions, next fiscal year		8.0
Expected future plan benefit payment - 2024		124.0
Expected future plan benefit payment - 2025		140.4
Expected future plan benefit payment - 2026		146.5
Expected future plan benefit payment - 2027		126.7
Expected future plan benefit payment - 2028		125.1
Expected future plan benefit payment - 2029 to 2033		$ 661.3
Defined contribution plan, maximum annual contribution per employee, percent		50.00%
Highly compensated employee contribution percentage to retirement and saving plan		12.00%
Defined contribution plan, cost			$ 163.6		$ 153.1		$ 130.8
Time-based restricted stock
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Vesting term options granted		3 years
Performance Based Restricted Stock and Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Minimum percentage that will ultimately vest under performance-based restricted stock awards based on performance target		0.00%
Maximum percentage that will ultimately vest under performance-based restricted stock awards based on performance target		200.00%
Employee Stock
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Purchase price of common stock as percentage of market value		95.00%
Non-Vested Stock Options
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total remaining unrecognized compensation cost		$ 8.3
Weighted-average remaining requisite vesting period		1 year 9 months 18 days
Restricted Stock Units (RSUs)
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total remaining unrecognized compensation cost		$ 137.1
Weighted-average remaining requisite vesting period		1 year 10 months 24 days
Non-Vested Restricted Stock
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total remaining unrecognized compensation cost		$ 53.5
Weighted-average remaining requisite vesting period		1 year 3 months 18 days
Cash and cash equivalents | Level 1
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Plan assets		$ 2.2		$ 32.8
Minimum | Performance Based Restricted Stock and Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Performance period (years)		1 year
Maximum | Performance Based Restricted Stock and Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Vesting term options granted		38 months
Performance period (years)		3 years