Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, accumulated amortization	$ (111.3)	$ (99.0)
Total	32.1
Total other intangible assets, gross carrying amount	1,631.0	2,125.5
Total other intangible assets, net carrying amount	1,519.7	2,026.5
Gaming licenses
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	1,246.0	1,681.9
Trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	240.9	302.4
Other
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	0.7	0.7
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, gross carrying amount	106.8	104.4
Amortizing intangible assets, accumulated amortization	(78.3)	(69.0)
Total	28.5	35.4
Other
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, gross carrying amount	36.6	36.1
Amortizing intangible assets, accumulated amortization	(33.0)	(30.0)
Total	$ 3.6	$ 6.1