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Statements Of Condensed Consolidated Comprehensive Income - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statement of Comprehensive Income [Abstract] |  |  |
Net income attributable to Cliffs shareholders | $ 292.8 | $ 1,128.1 | $ 367.0
Net Income (Loss) Available to Common Stockholders, Basic | 292.8 | 1,128.1 | 367.0
Other comprehensive income (loss): |  |  |
Changes in pension and OPEB, net of tax | (34.6) | (17.2) | 11.5
Changes in foreign currency translation | 0.0 | (225.4) | (13.9)
Changes in derivative financial instruments, net of tax | (0.3) | (2.3) | (0.5)
Other comprehensive loss | (34.9) | (244.9) | (2.9)
Other comprehensive loss attributable to the noncontrolling interest | 0.0 | 0.0 | (1.1)
Total comprehensive income attributable to Cliffs shareholders | $ 257.9 | $ 883.2 | $ 363.0

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