Property and Equipment - Depreciation Expense and Capitalized Interest (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Property, Plant and Equipment [Line Items]
Capitalized Interest		$ 2	$ 1	$ 4	$ 1
Property, Plant and Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	[1]	135	94	303	273
Asset under Construction [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense		$ 54	$ 16	$ 59	$ 41

[1] Depreciation expense for the three and nine months ended September 30, 2017 includes accelerated depreciation of $54 million and $59 million, respectively, due to asset removal and replacement in connection with property renovations primarily at Bally’s Las Vegas and Harrah’s Las Vegas compared with $16 million and $41 million during the three and nine months ended September 30, 2016, respectively, related to property renovations primarily at Harrah’s Las Vegas and Paris Las Vegas.