Pension and Postretirement Benefits - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss due to change in discount rate	$ 415.0	$ 95.0
Actuarial gain from updates to assumed cash balance conversion interest rates and cash balance interest crediting rate	10.0	6.0
Actuarial gain due to change in mortality assumptions	50.0	5.0
Underfunded of unfunded accumulated benefit obligations	147.8	166.6
Pension settlement charge	$ (2.1)	$ 0.0	$ (0.6)
Recognition period of short-term fluctuations in fair value for market-related valuation of assets	5 years
Target asset allocations (as a percent)	100.00%	100.00%
Maximum contributions per employee (as a percent)	50.00%
Employer matching contribution (as a percent)	50.00%
Employer matching contribution as a percent of employees' gross pay (as a percent)	7.00%
Net periodic benefit cost (credit)	$ 10.7	$ 11.1	$ 10.6
Bisnode
Defined Benefit Plan Disclosure [Line Items]
Pension liability		87.4
Plan assets		22.0
Executive
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation for former executives	5.1	6.5
Long-Term Pension and Postretirement Benefits | Executive
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation for former executives	$ 4.5	$ 5.9
Return-seeking assets
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	37.00%	49.00%
Return-seeking assets | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	25.00%
Return-seeking assets | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	45.00%
Return-seeking assets | Weighted Average
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	37.00%
Liability-hedging assets
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	63.00%	51.00%
Liability-hedging assets | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	55.00%
Liability-hedging assets | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	75.00%
Liability-hedging assets | Weighted Average
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations (as a percent)	63.00%
United States
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss	$ (38.0)
United States | Minimum
Defined Benefit Plan Disclosure [Line Items]
Amortization period	5 years
United States | Maximum
Defined Benefit Plan Disclosure [Line Items]
Amortization period	20 years
Foreign Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Amortization period	4 years
Foreign Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Amortization period	31 years
Qualified Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Proportion of compensation allocated to retirement plans annually (as a percent)	3.00%
Qualified Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Proportion of compensation allocated to retirement plans annually (as a percent)	12.50%
Qualified Plan | United States
Defined Benefit Plan Disclosure [Line Items]
Weighted average expected long-term return on plan assets (as a percent)	5.50%	6.00%	6.50%
Employer contributions		$ 0.0
Expected future benefit payments in 2023	$ 0.0	0.0
Qualified Plan | United States | Defined Benefit Plan, Unfunded Plan
Defined Benefit Plan Disclosure [Line Items]
Underfunded of unfunded accumulated benefit obligations	99.0	105.4
Qualified Plan | United States | Venture Capital Fund
Defined Benefit Plan Disclosure [Line Items]
Unfunded commitments	0.1	0.1
Qualified Plan | United States | Credit Fund
Defined Benefit Plan Disclosure [Line Items]
Unfunded commitments	24.8	17.2
Qualified Plan | Foreign Plan | Defined Benefit Plan, Unfunded Plan
Defined Benefit Plan Disclosure [Line Items]
Underfunded of unfunded accumulated benefit obligations	48.8	61.2
Qualified Plan | Foreign Plan | Defined Benefit Plan, Unfunded Plan | Bisnode
Defined Benefit Plan Disclosure [Line Items]
Increase in underfunded accumulated benefit obligations	18.8
Non-Qualified Plan | United States
Defined Benefit Plan Disclosure [Line Items]
Pension settlement charge	2.1		$ 0.6
Pension plans
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss	$ (337.3)	$ (85.3)
Weighted average expected long-term return on plan assets (as a percent)	5.32%	5.70%	6.18%
Employer contributions	$ 7.0	$ 7.5
Expected future benefit payments in 2023	101.0
Net periodic benefit cost (credit)	(40.9)	(48.1)	$ (44.0)
Pension plans | Foreign Plan | Forecast
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions in 2023				$ 6.4
Postretirement benefit obligations
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss	(0.1)	(0.1)
Employer contributions	0.2	0.2
Expected future benefit payments in 2023	0.2
Net periodic benefit cost (credit)	$ (0.4)	$ (0.4)	$ (0.4)
Postretirement benefit obligations | Foreign Plan | Forecast
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions in 2023				$ 0.2