Debt (Details) $ / shares in Units, € in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) agreement $ / shares	Sep. 30, 2024 EUR (€)	May 31, 2024 USD ($)	May 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 EUR (€)	Aug. 31, 2023 USD ($)	May 31, 2023 USD ($)	May 31, 2023 EUR (€)	May 26, 2023 USD ($)	May 26, 2023 EUR (€)	Aug. 30, 2022 USD ($)	Mar. 25, 2022 USD ($)
Debt Instrument
Total long-term debt			$ 5,068.0				$ 4,840.0		$ 4,807.0
Less amounts due within one year			359.0				142.0		53.0
Long-term debt			4,709.0				4,698.0		4,754.0
Additional interest charges for note repurchase premiums and write-off of unamortized finance fees	$ 2.0	$ 39.0
Maximum Borrowing Capacity																	$ 2,800.0
Secured Credit Agreement
Debt Instrument
Unused Credit			$ 1,240.0
Number of financial maintenance covenants | agreement			1
Additional default interest rate per annum applied to all obligations owed under the Agreement			2.00%
Secured Credit Agreement | Minimum
Debt Instrument
Interest rate margin, Term SOFR loans and Euro currency rate loans			1.00%	1.00%
Interest rate margin, Base Rate loans (as a percent)			0.00%
Facility fee payable (as a percent)			0.20%
Secured Credit Agreement | Maximum
Debt Instrument
Interest rate margin, Term SOFR loans and Euro currency rate loans			2.25%	2.25%
Interest rate margin, Base Rate loans (as a percent)			1.25%
Leverage Ratio			2.50
Facility fee payable (as a percent)			0.35%
Revolving Loans
Debt Instrument
Weighted average interest rate (as a percent)			6.37%	6.37%
Term Loan A
Debt Instrument
Total long-term debt			$ 1,392.0				1,391.0		1,427.0
Maximum Borrowing Capacity			1,450.0
Senior Notes 5.875%, due 2023
Debt Instrument
Total long-term debt											$ 108.0			$ 142.0
Interest rate, stated percentage											5.875%			5.875%	5.875%
3.125%, due 2024 (€58 million at June 30, 2024 and December 31, 2023 and €725 million at June 30, 2023)
Debt Instrument
Total long-term debt			$ 65.0	€ 58.0			63.0	€ 58.0	60.0	€ 58.0					€ 666.7
Interest rate, stated percentage			3.125%	3.125%										3.125%	3.125%
Fair values of fixed rate debt obligations
Principal Amount			$ 65.0
Indicated Market Price (in dollars per share) | $ / shares			$ 99.92
Fair Value			$ 65.0
Senior Notes 6.375%, due 2025
Debt Instrument
Total long-term debt					$ 300.0		299.0		298.0
Interest rate, stated percentage			6.375%	6.375%	6.375%	6.375%
Senior Notes, 5.375% due 2025
Debt Instrument
Total long-term debt			$ 17.0				17.0		17.0					$ 282.8
Interest rate, stated percentage	5.375%		5.375%	5.375%										5.375%	5.375%
Fair values of fixed rate debt obligations
Principal Amount			$ 17.0
Indicated Market Price (in dollars per share) | $ / shares			$ 99.86
Fair Value			$ 17.0
2.875%, due 2025 (€176 million at June 30, 2024, €500 million at December 31, 2023 and June 30, 2023)
Debt Instrument
Total long-term debt			$ 197.0	€ 176.0		€ 323.4	551.0	€ 500.0	527.0	€ 500.0
Interest rate, stated percentage			2.875%	2.875%	2.875%	2.875%
Fair values of fixed rate debt obligations
Principal Amount			$ 197.0
Indicated Market Price (in dollars per share) | $ / shares			$ 99.57
Fair Value			$ 196.0
Senior Notes 6.625%, due 2027
Debt Instrument
Total long-term debt			$ 609.0	€ 600.0			608.0		608.0
Interest rate, stated percentage			6.625%	6.625%
Fair values of fixed rate debt obligations
Principal Amount			$ 612.0
Indicated Market Price (in dollars per share) | $ / shares			$ 100.55
Fair Value			$ 615.0
6.250%, due 2028 (€600 million)
Debt Instrument
Total long-term debt			$ 663.0	€ 600.0			656.0		627.0
Interest rate, stated percentage			6.25%	6.25%								6.25%	6.25%
Face value | €													€ 600.0
Fair values of fixed rate debt obligations
Principal Amount			$ 670.0
Indicated Market Price (in dollars per share) | $ / shares			$ 104.32
Fair Value			$ 699.0
5.250%, due 2029 (€500 million)
Debt Instrument
Total long-term debt			$ 551.0	€ 500.0
Interest rate, stated percentage			5.25%	5.25%	5.25%	5.25%
Face value | €						€ 500.0
Fair values of fixed rate debt obligations
Principal Amount			$ 558.0
Indicated Market Price (in dollars per share) | $ / shares			$ 102.27
Fair Value			$ 571.0
Senior Notes 4.750%, due 2030
Debt Instrument
Total long-term debt			$ 397.0				396.0		396.0
Interest rate, stated percentage			4.75%	4.75%
Fair values of fixed rate debt obligations
Principal Amount			$ 400.0
Indicated Market Price (in dollars per share) | $ / shares			$ 94.53
Fair Value			$ 378.0
Senior Notes 7.250% due 2031
Debt Instrument
Total long-term debt			$ 682.0				682.0		681.0
Interest rate, stated percentage			7.25%	7.25%								7.25%	7.25%
Face value												$ 690.0
Fair values of fixed rate debt obligations
Principal Amount			$ 690.0
Indicated Market Price (in dollars per share) | $ / shares			$ 102.83
Fair Value			$ 710.0
Senior Notes 7.375% due 2032
Debt Instrument
Total long-term debt			$ 296.0
Interest rate, stated percentage			7.375%	7.375%	7.375%	7.375%
Face value					$ 300.0
Fair values of fixed rate debt obligations
Principal Amount			$ 300.0
Indicated Market Price (in dollars per share) | $ / shares			$ 102.14
Fair Value			$ 306.0
Finance leases
Debt Instrument
Total long-term debt			198.0				174.0		164.0
Other debt
Debt Instrument
Total long-term debt			1.0				$ 3.0		$ 2.0
Revolving Credit Facility
Debt Instrument
Maximum Borrowing Capacity			300.0
Delayed draw term loan facility
Debt Instrument
Maximum Borrowing Capacity																	$ 600.0
Term loans in aggregate
Debt Instrument
Maximum Borrowing Capacity																$ 500.0
Multicurrency Revolving Credit Facility
Debt Instrument
Maximum Borrowing Capacity			$ 950.0