Intangible Assets, net and Goodwill (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0	$ 54	$ 0
Revenue, Estimated Terminal Growth Rate [Member]
Goodwill [Line Items]
Goodwill, Fair Value Input, Revenue Growth			(2.00%)
Maximum [Member]
Goodwill [Line Items]
Goodwill, Fair Value Input, Profit Margin			23.00%
Goodwill, Fair Value Input, Discount Rate			10.00%
Maximum [Member] | Measurement Input, EBITDA Multiple [Member]
Goodwill [Line Items]
Goodwill, Market Comparable Analysis, Measurement Input			750.00%
Maximum [Member] | Revenue Growth Estimate, FY 2021 [Member]
Goodwill [Line Items]
Goodwill, Fair Value Input, Revenue Growth			20.00%
Maximum [Member] | Revenue Growth Estimate, FY2022 to FY2027 [Member]
Goodwill [Line Items]
Goodwill, Fair Value Input, Revenue Growth			5.00%
Maximum [Member] | Measurement Input, Revenue Multiple [Member]
Goodwill [Line Items]
Goodwill, Market Comparable Analysis, Measurement Input			270.00%
Minimum [Member]
Goodwill [Line Items]
Goodwill, Fair Value Input, Profit Margin			13.00%
Goodwill, Fair Value Input, Discount Rate			8.50%
Minimum [Member] | Measurement Input, EBITDA Multiple [Member]
Goodwill [Line Items]
Goodwill, Market Comparable Analysis, Measurement Input			570.00%
Minimum [Member] | Revenue Growth Estimate, FY 2021 [Member]
Goodwill [Line Items]
Goodwill, Fair Value Input, Revenue Growth			9.00%
Minimum [Member] | Revenue Growth Estimate, FY2022 to FY2027 [Member]
Goodwill [Line Items]
Goodwill, Fair Value Input, Revenue Growth			3.00%
Minimum [Member] | Measurement Input, Revenue Multiple [Member]
Goodwill [Line Items]
Goodwill, Market Comparable Analysis, Measurement Input			210.00%
U.K. Gaming
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 54