Note 8. Short And Long-Term Debt Schedule of Debt (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
		Jan. 31, 2017	Dec. 31, 2016		Feb. 21, 2017	Jul. 20, 2016	Mar. 01, 2016	Dec. 31, 2015		Oct. 23, 2015
Principal Amount
Long-term Debt, Gross	[1]		$ 3,763
Outstanding borrowings, securitization obligations			205					$ 247
Unamortized Discount and Debt Issuance Costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	[1]		51
Net Amount
Outstanding borrowings, long-term debt	[1]		3,712
Outstanding borrowings, securitization obligations			$ 205					247
Letter of Credit, borrowing capacity								125		$ 125
Unsecured Letter of Credit Facility [Member]
Net Amount
Interest Rate			2.93%
Outstanding letter of credit			$ 127
Letter of Credit, borrowing capacity			$ 131
LIBOR [Member]
Net Amount
Description of variable interest rate basis			LIBOR
ABR [Member]
Net Amount
Description of variable interest rate basis			ABR
Securitization obligations
Principal Amount
Outstanding borrowings, securitization obligations			$ 205					247
Net Amount
Outstanding borrowings, securitization obligations			205					247
Revolving Credit Facility | Line of Credit [Member]
Principal Amount
Outstanding borrowings, short-term debt, line of credit facility			200	[2],[3]				200
Net Amount
Outstanding borrowings, short-term debt, line of credit facility			200	[2],[3]				200
Line of credit facility borrowing capacity			815							815
Available capacity, line or credit facility			$ 615
Revolving Credit Facility | Line of Credit [Member] | LIBOR [Member] | Less than 2.50 to 1.00
Net Amount
Debt Instrument, basis spread on variable rate			2.00%
Revolving Credit Facility | Line of Credit [Member] | ABR [Member] | Less than 2.50 to 1.00
Net Amount
Debt Instrument, basis spread on variable rate			1.00%
Revolving Credit Facility | Line of Credit [Member] | Subsequent Event
Principal Amount
Outstanding borrowings, short-term debt, line of credit facility					$ 200
Net Amount
Outstanding borrowings, short-term debt, line of credit facility					200
Line of credit facility borrowing capacity		$ 1,050
Available capacity, line or credit facility					$ 850
Term Loan B | LIBOR [Member]
Net Amount
Debt Instrument, basis spread on variable rate			3.00%
Debt Instrument, basis spread on variable rate, floor			0.75%
Term Loan B | ABR [Member]
Net Amount
Debt Instrument, basis spread on variable rate			2.00%
Debt Instrument, basis spread on variable rate, floor			1.75%
Term Loan B | Subsequent Event | LIBOR [Member]
Net Amount
Debt Instrument, basis spread on variable rate		2.25%
Debt Instrument, basis spread on variable rate, floor		0.75%
Term Loan B | Secured Debt [Member]
Principal Amount
Long-term Debt, Gross			$ 1,094	[4]		$ 1,100		1,867
Unamortized Discount and Debt Issuance Costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	[4]		25
Net Amount
Outstanding borrowings, long-term debt			$ 1,069	[4]				1,839
Annual percentage of original principal amount for quarterly amortization payments			1.00%
Term Loan A | Secured Debt [Member]
Principal Amount
Long-term Debt, Gross			$ 413	[5]				435		$ 435
Unamortized Discount and Debt Issuance Costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	[5]		2
Net Amount
Outstanding borrowings, long-term debt			$ 411	[5]				433
Term Loan A | Secured Debt [Member] | LIBOR [Member] | Less than 2.50 to 1.00
Net Amount
Debt Instrument, basis spread on variable rate			2.00%
Term Loan A | Secured Debt [Member] | ABR [Member] | Less than 2.50 to 1.00
Net Amount
Debt Instrument, basis spread on variable rate			1.00%
Term Loan A | Secured Debt [Member] | 2016
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			5.00%
Term Loan A | Secured Debt [Member] | 2017
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			5.00%
Term Loan A | Secured Debt [Member] | 2018
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			7.50%
Term Loan A | Secured Debt [Member] | 2019
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			10.00%
Term Loan A | Secured Debt [Member] | 2020
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			12.50%
Term Loan A-1 | Secured Debt [Member]
Principal Amount
Long-term Debt, Gross			$ 351	[6]		$ 355		0	[5]
Unamortized Discount and Debt Issuance Costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	[6]		4
Net Amount
Outstanding borrowings, long-term debt			$ 347	[6]				0
Term Loan A-1 | Secured Debt [Member] | LIBOR [Member] | Less than 2.50 to 1.00 but greater than or equal to 2.00 to 1.00
Net Amount
Debt Instrument, basis spread on variable rate			2.00%
Term Loan A-1 | Secured Debt [Member] | ABR [Member] | Less than 2.50 to 1.00 but greater than or equal to 2.00 to 1.00
Net Amount
Debt Instrument, basis spread on variable rate			1.00%
Term Loan A-1 | Secured Debt [Member] | 2017
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			2.50%
Term Loan A-1 | Secured Debt [Member] | 2018
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			2.50%
Term Loan A-1 | Secured Debt [Member] | 2019
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			5.00%
Term Loan A-1 | Secured Debt [Member] | 2020
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			7.50%
Term Loan A-1 | Secured Debt [Member] | 2021
Net Amount
Annual percentage of original principal amount for quarterly amortization payments			10.00%
4.50% Senior Notes | Senior Notes [Member]
Principal Amount
Long-term Debt, Gross			$ 450					450
Unamortized Discount and Debt Issuance Costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net			11
Net Amount
Outstanding borrowings, long-term debt			$ 439					434
Interest Rate			4.50%
5.25% Senior Notes | Senior Notes [Member]
Principal Amount
Long-term Debt, Gross			$ 550				$ 300	300
Unamortized Discount and Debt Issuance Costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net			5
Net Amount
Outstanding borrowings, long-term debt			$ 545					297
Interest Rate			5.25%
4.875% Senior Notes | Senior Notes [Member]
Principal Amount
Long-term Debt, Gross			$ 500					0
Unamortized Discount and Debt Issuance Costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net			4
Net Amount
Outstanding borrowings, long-term debt			$ 496					0
Interest Rate			4.875%
Apple Ridge Funding LLC | Securitization obligations
Principal Amount
Outstanding borrowings, securitization obligations			$ 192	[7],[8]				238
Net Amount
Outstanding borrowings, securitization obligations			192	[7],[8]				238
Total capacity, securitization obligations			325
Available capacity, debt			133
Cartus Financing Limited | Securitization obligations
Principal Amount
Outstanding borrowings, securitization obligations			13	[8],[9]				9
Net Amount
Outstanding borrowings, securitization obligations			13	[8],[9]				$ 9
Total capacity, securitization obligations			19
Available capacity, debt			$ 6

[1] Not included in this table, the Company had $127 million of outstanding letters of credit at December 31, 2016 under the Unsecured Letter of Credit Facility with a weighted average rate of 2.93%. At December 31, 2016 the capacity of the facility was $131 million.

[2] As of December 31, 2016, the Company had $815 million of borrowing capacity under its Revolving Credit Facility, leaving $615 million of available capacity. The revolving credit facility expires in October 2020, but is classified on the balance sheet as current due to the revolving nature of the facility. See Note 20, "Subsequent Events" for a description of the January 2017 increase of the borrowing capacity under its Revolving Credit Facility. On February 21, 2017, the Company had $200 million outstanding borrowings on the Revolving Credit Facility, leaving $850 million of available capacity.

[3] Interest rates with respect to revolving loans under the Senior Secured Credit Facility at December 31, 2016 are based on, at the Company's option, (a) adjusted LIBOR plus an additional margin or (b) ABR plus an additional margin, in each case subject to adjustment based on the then current senior secured leverage ratio. Based on the previous quarter senior secured leverage ratio, the LIBOR margin was 2.00% and the ABR margin was 1.00% for the three months ended December 31, 2016.

[4] The Term Loan B provides for quarterly amortization payments totaling 1% per annum of the original principal amount. The interest rate with respect to term loans under the Term Loan B is based on, at the Company’s option, (a) adjusted LIBOR plus 3.00% (with a LIBOR floor of 0.75%) or (b) JPMorgan Chase Bank, N.A.’s prime rate ("ABR") plus 2.00% (with an ABR floor of 1.75%). See Note 20, "Subsequent Events" for a description of the January 2017 refinancing of the Term Loan B.

[5] The Term Loan A provides for quarterly amortization payments, which commenced March 31, 2016, totaling per annum 5%, 5%, 7.5%, 10.0% and 12.5% of the original principal amount of the Term Loan A in 2016, 2017, 2018, 2019 and 2020, respectively. The interest rates with respect to term loans under the Term Loan A are based on, at the Company's option, (a) adjusted LIBOR plus an additional margin or (b) ABR plus an additional margin, in each case subject to adjustment based on the then current senior secured leverage ratio. Based on the previous quarter senior secured leverage ratio, the LIBOR margin was 2.00% and the ABR margin was 1.00% for the three months ended December 31, 2016.

[6] The Term Loan A-1 provides for quarterly amortization payments, which commenced on September 30, 2016, totaling per annum 2.5%, 2.5%, 5%, 7.5% and 10.0% of the original principal amount of the Term Loan A-1, with the last amortization payment made on June 30, 2021. The interest rates with respect to term loans under the Term Loan A-1 are based on, at the Company's option, (a) adjusted LIBOR plus an additional margin or (b) ABR plus an additional margin, in each case subject to adjustment based on the then current senior secured leverage ratio. Based on the previous quarter senior secured leverage ratio, the LIBOR margin was 2.00% and the ABR margin was 1.00% for the three months ended December 31, 2016.

[7] As of December 31, 2016, the Company had $325 million of borrowing capacity under the Apple Ridge Funding LLC securitization program leaving $133 million of available capacity.

[8] Available capacity is subject to maintaining sufficient relocation related assets to collateralize these securitization obligations.

[9] Consists of a £10 million revolving loan facility and a £5 million working capital facility. As of December 31, 2016, the Company had $19 million of borrowing capacity under the Cartus Financing Limited securitization program leaving $6 million of available capacity.