SUPPLEMENTAL CASH FLOW INFORMATION - SUPPLEMENTAL INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Supplemental cash flow information
Cash paid for interest, net of amount capitalized	$ 68.3	$ 76.8
Cash paid (received) for income taxes, net	0.7	(2.5)
Significant non-cash investing and financing transactions:
Accounts payable related to construction costs	118.7	97.8
Increase in receivable related to insurance proceeds	$ 0.3	$ 2.7

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

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

+ References

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The amount of a receivable related to insurance proceeds considered to be a noncash investing or financing activity.

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