Pension and Postretirement Health Care (Net Periodic Pension Expense (Benefit)) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Postretirement Health Care Plan
Defined Benefit Plan, Net Periodic Benefit Cost
Service Cost	$ 0	$ 0	$ 0	$ 0
Interest Cost	100,000	100,000	200,000	200,000
Amortization
Actuarial Loss (Gain)	(100,000)	0	(200,000)	(100,000)
Prior Service Cost (Credit)	(200,000)	(300,000)	(400,000)	(500,000)
Total Pension Expense	(200,000)	(200,000)	(400,000)	(400,000)
U.S. Plan | Pension Plan | Qualified Plan
Defined Benefit Plan, Net Periodic Benefit Cost
Service Cost	13,200,000	13,200,000	26,400,000	26,400,000
Interest Cost	10,300,000	9,800,000	20,600,000	19,600,000
Expected Return on Plan Assets	(20,200,000)	(20,100,000)	(40,400,000)	(40,200,000)
Amortization
Actuarial Loss (Gain)	5,700,000	9,400,000	11,400,000	18,800,000
Prior Service Cost (Credit)	0	(100,000)	(100,000)	(200,000)
Total Pension Expense	9,000,000.0	12,200,000	17,900,000	24,400,000
Settlement Expense	20,300,000	17,600,000	20,300,000	17,600,000
Total Pension Expense	29,300,000	29,800,000	$ 38,200,000	42,000,000.0
Defined benefit plan, assumptions used calculating net periodic benefit cost, discount rate			4.81%
Expected long-term rate of return on plan assets			6.00%
Defined benefit plan, benefit obligation, (increase) decrease for settlement			$ 295,000,000
Benefit obligation	1,106,300,000		1,106,300,000		$ 1,401,300,000
Defined benefit plan, plan assets, period increase (decrease)			118,700,000
Defined benefit plan, funded (unfunded) status of plan	188,900,000		188,900,000		$ 307,600,000
Contribution to pension plan			0	0
U.S. Plan | Pension Plan | Non-Qualified Plan
Defined Benefit Plan, Net Periodic Benefit Cost
Service Cost	1,400,000	1,300,000	2,800,000	2,600,000
Interest Cost	1,000,000.0	1,000,000.0	2,000,000.0	1,900,000
Amortization
Actuarial Loss (Gain)	1,800,000	2,000,000.0	3,600,000	4,100,000
Total Pension Expense	4,200,000	4,300,000	8,400,000	8,600,000
Contribution to pension plan			20,700,000	6,700,000
Non-U.S. Plan | Pension Plan
Defined Benefit Plan, Net Periodic Benefit Cost
Service Cost	500,000	600,000	900,000	1,100,000
Interest Cost	600,000	500,000	1,300,000	1,100,000
Expected Return on Plan Assets	(800,000)	(700,000)	(1,500,000)	(1,300,000)
Amortization
Actuarial Loss (Gain)	200,000	200,000	400,000	500,000
Prior Service Cost (Credit)	0	100,000	0	100,000
Total Pension Expense	500,000	700,000	1,100,000	1,500,000
Settlement Expense	0	700,000	700,000	900,000
Total Pension Expense	$ 500,000	$ 1,400,000	$ 1,800,000	$ 2,400,000