Income Taxes	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Our effective tax rate was 28 percent and 25 percent for the three-month and six-month periods ended June 30, 2018, respectively. Our tax rate was higher than our 2018 statutory tax rate of 21 percent for these periods due primarily to an increase from state and local taxes, net of U.S. Federal tax benefit, of four percent and an increase from U.S. and foreign taxes on foreign earnings of three percent. The higher tax rate for the six-month period ended June 30, 2018 was partially offset by a decrease from an income tax benefit on stock-based compensation of three percent. Our effective tax rate was 33 percent and 31 percent for the three-month and six-month periods ended June 30, 2017, respectively. Our tax rate was lower than our 2017 statutory tax rate of 35 percent for these periods due primarily to a decrease from an income tax benefit on stock-based compensation of four percent and a decrease from lower foreign taxes on foreign earnings of one percent and two percent, respectively. These decreases were partially offset by an increase from state and local taxes, net of U.S. Federal tax benefit, of three percent and two percent, respectively.

Income Taxes

6 Months Ended

Jun. 30, 2018

INCOME TAXES

Our effective tax rate was 28 percent and 25 percent for the three-month and six-month periods ended June 30, 2018, respectively. Our tax rate was higher than our 2018 statutory tax rate of 21 percent for these periods due primarily to an increase from state and local taxes, net of U.S. Federal tax benefit, of four percent and an increase from U.S. and foreign taxes on foreign earnings of three percent. The higher tax rate for the six-month period ended June 30, 2018 was partially offset by a decrease from an income tax benefit on stock-based compensation of three percent.

Our effective tax rate was 33 percent and 31 percent for the three-month and six-month periods ended June 30, 2017, respectively. Our tax rate was lower than our 2017 statutory tax rate of 35 percent for these periods due primarily to a decrease from an income tax benefit on stock-based compensation of four percent and a decrease from lower foreign taxes on foreign earnings of one percent and two percent, respectively. These decreases were partially offset by an increase from state and local taxes, net of U.S. Federal tax benefit, of three percent and two percent, respectively.