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Income Taxes Provision for Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ 86.4	$ 62.7	$ (12.7)
State	1.5	51.9	5.6
Non-U.S.	357.4	770.4	386.9
Total current	445.3	885.0	379.8
Noncurrent:
Federal	0.3	0.2	0.0
Non-U.S.	(3.0)	(0.7)	110.0
Total noncurrent	(2.7)	(0.5)	110.0
Deferred:
Federal	(35.4)	215.4	141.9
State	(4.2)	31.0	21.4
Non-U.S.	(226.0)	93.4	(55.4)
Total deferred	(265.6)	339.8	107.9
Provision for income taxes	$ 177.0	$ 1,224.3	$ 597.7

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