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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Cash: |  |  |
Interest paid, net of capitalized interest | [1] | $ 182.6 | $ 171.8
Income taxes (received) paid, net |  | 1.0 | (44.4)
Non-cash investing activities: |  |  |
Transfers from materials and supplies inventory to property, plant and equipment |  | 0.4 | 1.8
Non-cash financing activities: |  |  |
Changes in accrued distributions to noncontrolling interests |  | (27.7) | (1.9)
Retained Earnings [Member] |  |  |
Non-cash investing activities: |  |  |
Impact of capital expenditure accruals on property, plant and equipment, net |  | $ (0.3) | $ (143.9)
[1] | Interest capitalized on major projects was $1.7 million and $22.5 million for the six months ended June 30, 2021 and 2020.

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