Income Taxes	6 Months Ended
Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Our effective tax rate decreased from 32.6% to 32.4% for the three months ended June 30, 2015 primarily due to a lower effective tax rate on foreign pre-tax earnings and a deferred tax benefit due to changes in state income tax laws, partially offset by higher pre-tax earnings in the U.S., which are taxed at a higher rate. Our effective rate increased from 29.5% to 32.4% for the six months ended June 30, 2015 primarily due to a $21 million prior year resolution of an issue with the U.S. federal tax authorities for a guest marketing program that was favorable to the 2014 first quarter results, in addition to the 2015 second quarter items discussed above. For the 2015 second quarter, our unrecognized tax benefits balance of $10 million remained unchanged from both the 2015 first quarter and year-end 2014. The unrecognized tax benefits balance included $7 million of tax positions that, if recognized, would impact our effective tax rate. We file income tax returns, including returns for our subsidiaries, in various jurisdictions around the world. The Internal Revenue Service (“IRS”) has examined our federal income tax returns, and we have settled all issues for tax years through 2009. We participate in the IRS Compliance Assurance Program, which accelerates IRS examination of key transactions with the goal of resolving any issues before the taxpayer files its return. As a result, the audits of our open tax years 2010 through 2013 are complete, while the 2014 and 2015 tax year audits are currently ongoing. Various foreign, state, and local income tax returns are also under examination by the applicable taxing authorities. We believe it is reasonably possible that we will resolve two state apportionment issues during the next 12 months for which we have an unrecognized tax balance of $4 million. One issue is currently under audit, and the second issue is pending an expected court ruling in 2015. We paid cash for income taxes, net of refunds, of $90 million in the 2015 first half and $54 million in the 2014 first half.

Income Taxes

6 Months Ended

Jun. 30, 2015

INCOME TAXES

Our effective tax rate decreased from 32.6% to 32.4% for the three months ended June 30, 2015 primarily due to a lower effective tax rate on foreign pre-tax earnings and a deferred tax benefit due to changes in state income tax laws, partially offset by higher pre-tax earnings in the U.S., which are taxed at a higher rate. Our effective rate increased from 29.5% to 32.4% for the six months ended June 30, 2015 primarily due to a $21 million prior year resolution of an issue with the U.S. federal tax authorities for a guest marketing program that was favorable to the 2014 first quarter results, in addition to the 2015 second quarter items discussed above.

For the 2015 second quarter, our unrecognized tax benefits balance of $10 million remained unchanged from both the 2015 first quarter and year-end 2014. The unrecognized tax benefits balance included $7 million of tax positions that, if recognized, would impact our effective tax rate.

We file income tax returns, including returns for our subsidiaries, in various jurisdictions around the world. The Internal Revenue Service (“IRS”) has examined our federal income tax returns, and we have settled all issues for tax years through 2009. We participate in the IRS Compliance Assurance Program, which accelerates IRS examination of key transactions with the goal of resolving any issues before the taxpayer files its return. As a result, the audits of our open tax years 2010 through 2013 are complete, while the 2014 and 2015 tax year audits are currently ongoing. Various foreign, state, and local income tax returns are also under examination by the applicable taxing authorities. We believe it is reasonably possible that we will resolve two state apportionment issues during the next 12 months for which we have an unrecognized tax balance of $4 million. One issue is currently under audit, and the second issue is pending an expected court ruling in 2015.

We paid cash for income taxes, net of refunds, of $90 million in the 2015 first half and $54 million in the 2014 first half.