Debt & Non-recourse Debt - Schedule of Outstanding Borrowings (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019	Nov. 30, 2016
Debt Instrument [Line Items]
Long-term debt, gross	[1]	$ 1,164	$ 834
Less: unamortized deferred financing costs and discount	[2],[3]	(5)	(6)
Long-term debt		1,159	828
Revolving Credit Facility
Debt Instrument [Line Items]
Less: unamortized deferred financing costs and discount		(4)	(5)
Revolver with an average rate of 2.25%, due 2023 | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	[1]	660	320
Line of Credit | Term loans with an average rate of 2.25%, due 2023
Debt Instrument [Line Items]
Long-term debt, gross	[1]	177	187
Less: unamortized deferred financing costs and discount		(1)	(1)
Line of Credit | Senior notes with a rate of 6.125%, due 2024
Debt Instrument [Line Items]
Long-term debt, gross				$ 300
Less: unamortized deferred financing costs and discount				$ (8)
Senior Notes | Senior notes with a rate of 6.125%, due 2024
Debt Instrument [Line Items]
Long-term debt, gross	[1]	300	300
Less: unamortized deferred financing costs and discount		(4)	(5)
Other Debt
Debt Instrument [Line Items]
Long-term debt, gross	[1]	27	27
Non-recourse Debt
Debt Instrument [Line Items]
Long-term debt, gross	[4]	775	755
Less: unamortized deferred financing costs and discount	[5]	(9)	(8)
Long-term debt		766	747
Non-recourse Debt | Securitized Debt with an average rate of 3.602%, due 2032
Debt Instrument [Line Items]
Long-term debt, gross	[4]	202	275
Non-recourse Debt | Securitized Debt with an average rate of 1.810%, due 2026
Debt Instrument [Line Items]
Long-term debt, gross	[4]		46
Non-recourse Debt | Securitized Debt with an average rate of 2.711%, due 2028
Debt Instrument [Line Items]
Long-term debt, gross	[4]	106	149
Non-recourse Debt | Securitized Debt with an average rate of 2.421%, due 2033
Debt Instrument [Line Items]
Long-term debt, gross	[4]	216	$ 285
Non-recourse Debt | Securitized Debt with an average rate of 3.658%, due 2039
Debt Instrument [Line Items]
Long-term debt, gross	[4]	$ 251

[1] As of December 31, 2020 and 2019, weighted-average interest rates were 3.357 percent and 4.571 percent, respectively.

[2] Amount does not include deferred financing costs of $4 and $5 million as of December 31, 2020 and 2019, respectively, relating to our revolving facility included in Other Assets in our consolidated balance sheets.

[3] Amount includes deferred financing costs related to our term loan and senior notes of $1 million and $4 million, respectively as of December 31, 2020 and $1 million and $5 million, respectively as of December 31, 2019.

[4] As of December 31, 2020 and 2019, weighted-average interest rates were 3.173 percent and 2.876 percent, respectively

[5] Amount relates to Securitized Debt only and does not include deferred financing costs of $3 million as of December 31, 2020 and 2019, respectively, relating to our Timeshare Facility included in Other Assets in our consolidated balance sheets.