Employee Benefit Plans - Savings and Retirement Plan (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Contribution Savings and Retirement Plan Disclosure [Line Items]
Deferred Compensation Liability, Classified, Noncurrent	$ 80,000,000	$ 80,000,000	$ 84,000,000
London Clubs International
Defined Contribution Savings and Retirement Plan Disclosure [Line Items]
Defined Benefit Plan, Actuarial Gain (Loss)	21,000,000
Defined Benefit Plan, Fair Value of Plan Assets	208,000,000	208,000,000
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	293,000,000	293,000,000
Defined Benefit Pension Plan, Liabilities	85,000,000	85,000,000
Defined Benefit Plan, Expected Return on Plan Assets		0.057
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.40%	3.40%
Defined Contribution Savings and Retirement Plan [Member]
Defined Contribution Savings and Retirement Plan Disclosure [Line Items]
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent		50.00%
Employer annual cap per participant		600
Deferred Compensation Plans, Company Contributions, Vesting Period		5 years
Contribution expense		13,000,000	13,000,000	10,000,000
Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits [Member]
Defined Contribution Savings and Retirement Plan Disclosure [Line Items]
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities, Noncurrent	$ 33,000,000	$ 33,000,000	$ 30,000,000