Revenue Recognition - Summary of Contract Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Change In Contract Liabilities [Roll Forward]
Contract liability balance, beginning of period			$ 109
Liabilities recognized during the period			52
Amounts recognized in revenue from beginning balance			(61)
Contract liability balance, end of period	$ 100		100
Accounting Standards Update 2014-09 [Member] | Lottery | Instant products
Change In Contract Liabilities [Roll Forward]
Amounts recognized in revenue from beginning balance	$ (26)	$ (20)	$ (66)	$ (69)