Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, accumulated amortization	$ (119.5)	$ (100.8)
Amortizing intangible assets, net carrying amount	46.8
Indefinite-lived Intangible Assets [Line Items]
Total other intangible assets, gross carrying amount	2,224.0	1,957.7
Total other intangible assets, net carrying amount	2,104.5	1,856.9
Gaming licenses
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	1,734.6	1,498.3
Trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	322.4	298.0
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	104.3	98.8
Amortizing intangible assets, accumulated amortization	(64.6)	(51.5)
Amortizing intangible assets, net carrying amount	39.7	47.3
Other
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, gross carrying amount	62.0	61.9
Amortizing intangible assets, accumulated amortization	(54.9)	(49.3)
Amortizing intangible assets, net carrying amount	$ 7.1	$ 12.6