INCOME TAXES	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES C.H. Robinson Worldwide, Inc. and its 80 percent (or more) owned U.S. subsidiaries file a consolidated federal return. We file unitary or separate state returns based on state filing requirements. With few exceptions, we are no longer subject to audits of U.S. federal, state and local, or non-U.S. income tax returns before 2011. We are currently under an Internal Revenue Service audit for the 2015 tax year. Our effective tax rate for the three months ended June 30, 2018 and 2017 was 25.6 percent and 35.6 percent, respectively, and our effective tax rate for the six months ended June 30, 2018 and 2017 was 23.6 percent and 33.6 percent, respectively. The effective income tax rate for the three and six months ended June 30, 2018 was higher than the statutory federal income tax rate due to state income taxes, net of federal benefit, and foreign income taxes, but was partially offset by the tax impact of share-based payment awards. The tax impact of share-based payment awards resulted in a decrease in our provision for income taxes for the six months ended June 30, 2018 and 2017 of $7.5 million and $10.6 million, respectively. We have asserted that we will indefinitely reinvest earnings of foreign subsidiaries to support expansion of our international business. If we repatriated all foreign earnings, the estimated effect on income taxes payable would be an increase of approximately $15.0 million as of June 30, 2018. In connection with our initial analysis of the impact of the Tax Act, we recorded a discrete net tax benefit of $12.1 million in the year ended December 31, 2017. We have not yet completed our accounting for the income tax effects of certain elements of the Tax Act, but we were able to make reasonable estimates for elements in which our analysis is not complete and have therefore recorded provisional adjustments. During the six months ended June 30, 2018 we revised our analysis and recorded an additional net tax expense of $1.0 million related to an increase in 2017 transition taxes, resulting in a revised estimated net tax benefit of $11.1 million. Further, per FASB guidance, we are allowed to make an accounting policy election of either (1) treating taxes due on future U.S. inclusions in taxable income related to Global Intangible Low-Taxed Income (“GILTI”) as a current-period expense when incurred or (2) factoring such amounts into our measurement of our deferred taxes. We have elected to recognize the tax on GILTI as a current-period expense in the period the tax is incurred. As of June 30, 2018, we have $36.0 million of unrecognized tax benefits and related interest and penalties. It is possible the amount of unrecognized tax benefit could change in the next 12 months as a result of a lapse of the statute of limitations and settlements with taxing authorities. The total liability for unrecognized tax benefits is expected to decrease by approximately $1.8 million in the next 12 months due to lapsing of statutes.

INCOME TAXES

C.H. Robinson Worldwide, Inc. and its 80 percent (or more) owned U.S. subsidiaries file a consolidated federal return. We file unitary or separate state returns based on state filing requirements. With few exceptions, we are no longer subject to audits of U.S. federal, state and local, or non-U.S. income tax returns before 2011. We are currently under an Internal Revenue Service audit for the 2015 tax year.

Our effective tax rate for the three months ended June 30, 2018 and 2017 was 25.6 percent and 35.6 percent, respectively, and our effective tax rate for the six months ended June 30, 2018 and 2017 was 23.6 percent and 33.6 percent, respectively. The effective income tax rate for the three and six months ended June 30, 2018 was higher than the statutory federal income tax rate due to state income taxes, net of federal benefit, and foreign income taxes, but was partially offset by the tax impact of share-based payment awards. The tax impact of share-based payment awards resulted in a decrease in our provision for income taxes for the six months ended June 30, 2018 and 2017 of $7.5 million and $10.6 million, respectively. We have asserted that we will indefinitely reinvest earnings of foreign subsidiaries to support expansion of our international business. If we repatriated all foreign earnings, the estimated effect on income taxes payable would be an increase of approximately $15.0 million as of June 30, 2018.

In connection with our initial analysis of the impact of the Tax Act, we recorded a discrete net tax benefit of $12.1 million in the year ended December 31, 2017. We have not yet completed our accounting for the income tax effects of certain elements of the Tax Act, but we were able to make reasonable estimates for elements in which our analysis is not complete and have therefore recorded provisional adjustments. During the six months ended June 30, 2018 we revised our analysis and recorded an additional net tax expense of $1.0 million related to an increase in 2017 transition taxes, resulting in a revised estimated net tax benefit of $11.1 million.

Further, per FASB guidance, we are allowed to make an accounting policy election of either (1) treating taxes due on future U.S. inclusions in taxable income related to Global Intangible Low-Taxed Income (“GILTI”) as a current-period expense when incurred or (2) factoring such amounts into our measurement of our deferred taxes. We have elected to recognize the tax on GILTI as a current-period expense in the period the tax is incurred.

As of June 30, 2018, we have $36.0 million of unrecognized tax benefits and related interest and penalties. It is possible the amount of unrecognized tax benefit could change in the next 12 months as a result of a lapse of the statute of limitations and settlements with taxing authorities. The total liability for unrecognized tax benefits is expected to decrease by approximately $1.8 million in the next 12 months due to lapsing of statutes.