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Segments (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Segment Reporting Information [Line Items]        
Interest, taxes, depreciation and amortization included in earnings from equity method investments $ 9.5 $ 10.3 $ 23.3 $ 23.0