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Supplemental Financial Information (Cash Paid For Interest And Income Taxes) (Details) $ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($)	Dec. 31, 2024 AUD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Supplemental Financial Information [Abstract]
Interest, net of amounts capitalized			$ 78.3	$ 32.3	$ 44.2
Income Taxes Paid, Net			55.6	(8.3)	5.6
Capital expenditure accruals			36.2	$ 71.5	$ 22.1
Proceeds from Income Tax Refunds	$ 45.9	$ 38	$ 35.9

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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