Income Taxes	6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Effective January 1, 2017, we adopted ASU 2016-09 which requires the tax effects related to employee share-based payments to be recorded to income tax expense, thus increasing the volatility in our effective tax rate. Our effective tax rate was 33 percent and 31 percent for the three-month and six-month periods ended June 30, 2017, respectively, and 36 percent and 34 percent for the three-month and six-month periods ended June 30, 2016, respectively. The decrease in the rates is primarily due to a $10 million and $17 million income tax benefit on employee share-based payments recognized during the three-month and six-month periods ended June 30, 2017, respectively.

Income Taxes

6 Months Ended

Jun. 30, 2017

INCOME TAXES

Effective January 1, 2017, we adopted ASU 2016-09 which requires the tax effects related to employee share-based payments to be recorded to income tax expense, thus increasing the volatility in our effective tax rate.

Our effective tax rate was 33 percent and 31 percent for the three-month and six-month periods ended June 30, 2017, respectively, and 36 percent and 34 percent for the three-month and six-month periods ended June 30, 2016, respectively. The decrease in the rates is primarily due to a $10 million and $17 million income tax benefit on employee share-based payments recognized during the three-month and six-month periods ended June 30, 2017, respectively.