Pensions and Postretirement Benefits Other Than Pensions (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined benefit plan, fair value of pension plan assets	$ 2,051.6	$ 2,993.8
Percent of our projected benefit obligation relates to plans that cannot be funded	7.00%
Accumulated benefit obligation for all defined benefit pension plans	$ 2,343.2	3,311.0
Projected benefit obligation	1,850.0	2,906.5
Accumulated benefit obligation	1,847.0	2,831.5
Fair value of plan assets	1,585.6	2,424.6
Net of Medicare Part D subsidy	0.4	0.5
Net periodic benefit cost after net curtailment and settlement (gains) losses	(10.6)	(1.6)	$ (14.7)
Postretirement Benefit Costs [Member]
Postretirement benefit cost	2.0
Net periodic benefit cost after net curtailment and settlement (gains) losses	3.1	5.6	6.5
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	13.0
Pension Plans [Member]
Defined benefit plan, fair value of pension plan assets	$ 2,051.6	$ 2,993.8	3,114.6
Discount rate	5.51%	2.88%
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	$ 3.9	$ 5.0	5.3
Projected pension expenses for 2013	54.0
Projected company contributions in 2013	69.0
Plan net actuarial gains (losses)	810.3	121.9
Net periodic benefit cost after net curtailment and settlement (gains) losses	56.2	51.9	68.2
Defined Contribution Plan, Employer Discretionary Contribution Amount	138.0	126.0	111.0
Company contributions	$ 90.5	$ 55.9	$ 99.7
Postretirement [Member]
Discount rate	5.51%	2.73%	2.25%
Plan net actuarial gains (losses)	$ 53.7	$ 22.2
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	$ (5.6)
Defined Contribution and Other Benefit Plans [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount			$ 19.2
Non-U.S. [Member]
Discount rate	4.63%	1.74%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 33.8	$ 34.9
Fair Value, Inputs, Level 1 [Member]
Defined benefit plan, fair value of pension plan assets	3.3	1.6
Fixed Income Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Defined benefit plan, fair value of pension plan assets	0.0	$ 0.0
Reverse Morris Trust Transaction [Member]
Company contributions	$ 24.4