CAPITAL STOCK	3 Months Ended
Mar. 31, 2018
Equity [Abstract]
CAPITAL STOCK	CAPITAL STOCK On October 27, 2006, a three-year $1 billion share repurchase program was approved by the Board of Directors (Share Repurchase Program). On December 16, 2008, the provisions of the Share Repurchase Program were modified by the Board of Directors to replace the original three-year term with an indefinite term. During the three months ended March 31, 2018, we repurchased and retired 1.0 shares of common stock for $50.0 under this program. During the three months ended March 31, 2017, there were no repurchases under this program. To date, the Company has repurchased 22.1 shares for $909.4 under the Share Repurchase Program. Separate from the Share Repurchase Program, the Company repurchased 0.1 shares during both the three months ended March 31, 2018 and 2017, respectively, for an aggregate price of $5.3 and $2.3, respectively, in settlement of employee tax withholding obligations due upon the vesting of RSUs and PSUs.

CAPITAL STOCK

3 Months Ended

Mar. 31, 2018

On October 27, 2006, a three-year $1 billion share repurchase program was approved by the Board of Directors (Share Repurchase Program). On December 16, 2008, the provisions of the Share Repurchase Program were modified by the Board of Directors to replace the original three-year term with an indefinite term. During the three months ended March 31, 2018, we repurchased and retired 1.0 shares of common stock for $50.0 under this program. During the three months ended March 31, 2017, there were no repurchases under this program. To date, the Company has repurchased 22.1 shares for $909.4 under the Share Repurchase Program.

Separate from the Share Repurchase Program, the Company repurchased 0.1 shares during both the three months ended March 31, 2018 and 2017, respectively, for an aggregate price of $5.3 and $2.3, respectively, in settlement of employee tax withholding obligations due upon the vesting of RSUs and PSUs.