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DEBT AND INTEREST - Other Debt Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Debt instrument
Carrying value	$ 7,541.2		$ 7,541.2		$ 8,180.0
Long-term debt, current maturities	(2.4)		(2.4)		(628.6)
Long-term debt	7,538.8		7,538.8		7,551.4
Repayments of long-term debt			629.6
Interest
Interest expense	80.2	$ 82.7	174.7	$ 162.8
Interest income	(1.4)	(4.9)	(24.3)	(10.8)
Interest expense, net	78.8	$ 77.8	$ 150.4	$ 152.0
Public Notes
Debt instrument
Principal outstanding payable at time of prepayment of notes (as a percent)			101.00%
Five Year 2022 senior notes
Debt instrument
Carrying value	494.9		$ 494.9		494.2
Aggregate principal amount	500.0		$ 500.0
Debt instrument, term			5 years
Six Year 2021 Senior Notes
Debt instrument
Carrying value	497.8		$ 497.8		497.4
Aggregate principal amount	500.0		$ 500.0
Debt instrument, term			6 years
Ten year 2017 senior notes
Debt instrument
Carrying value	445.6		$ 445.6		448.3
Aggregate principal amount	500.0		$ 500.0
Debt instrument, term			10 years
Ten year 2020 senior notes
Debt instrument
Carrying value	652.5		$ 652.5		662.7
Aggregate principal amount	698.0		$ 698.0
Debt instrument, term			10 years
Ten year 2020 senior notes, maturing in 2031
Debt instrument
Carrying value	556.6		$ 556.6		561.0
Aggregate principal amount	600.0		$ 600.0
Debt instrument, term			10 years
Eleven Year 2021 Senior Notes
Debt instrument
Carrying value	645.5		$ 645.5		645.2
Aggregate principal amount	650.0		$ 650.0
Debt instrument, term			11 years
Thirty year 2011 senior notes
Debt instrument
Carrying value	384.9		$ 384.9		384.7
Aggregate principal amount	389.0		$ 389.0
Debt instrument, term			30 years
Thirty year 2017 senior notes
Debt instrument
Carrying value	427.5		$ 427.5		426.8
Aggregate principal amount	484.0		$ 484.0
Debt instrument, term			30 years
Thirty year 2020 senior notes
Debt instrument
Carrying value	491.2		$ 491.2		491.1
Aggregate principal amount	500.0		$ 500.0
Debt instrument, term			30 years
Thirty Year 2021 Senior Notes
Debt instrument
Carrying value	839.5		$ 839.5		839.3
Aggregate principal amount	850.0		$ 850.0
Debt instrument, term			30 years
Thirty-four year 2021 senior notes
Debt instrument
Carrying value	540.2		$ 540.2		539.2
Aggregate principal amount	685.0		$ 685.0
Debt instrument, term			34 years
Seven year 2016 senior euro notes
Debt instrument
Carrying value					625.9
Aggregate principal amount	575.0		$ 575.0
Debt instrument, term			7 years
Ten year 2016 senior notes
Debt instrument
Carrying value	728.5		$ 728.5		728.2
Aggregate principal amount	750.0		$ 750.0
Debt instrument, term			10 years
Thirty year 2016 senior notes
Debt instrument
Carrying value	197.4		$ 197.4		197.4
Aggregate principal amount	200.0		$ 200.0
Debt instrument, term			30 years
Ten Year 2015 senior euro notes
Debt instrument
Carrying value	623.1		$ 623.1		625.1
Aggregate principal amount	575.0		$ 575.0
Debt instrument, term			10 years
Other debt.
Debt instrument
Carrying value	$ 16.0		$ 16.0		$ 13.5

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