Revenue Recognition - Summary of Contract Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Document Period End Date	Dec. 31, 2019
Change In Contract Liabilities [Roll Forward]
Contract liability balance, beginning of period	$ 97
Liabilities recognized during the period	47
Amounts recognized in revenue from beginning balance	(35)
Contract liability balance,end of period	109	$ 97
Lottery | Instant products | Accounting Standards Update 2014-09
Change In Contract Liabilities [Roll Forward]
Amounts recognized in revenue from beginning balance	$ (95)	$ (103)