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Segments (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Segment Reporting Information [Line Items]        
Interest, taxes, depreciation and amortization included in earnings from equity method investments $ 9.9 $ 9.7 $ 33.2 $ 32.7