Capital Stock	6 Months Ended
Jun. 30, 2018
Captial Stock [Abstract]
CAPITAL STOCK	CAPITAL STOCK Dividends In the first six months of 2018, we paid cash dividends of $67 million on our common stock. On July 14, 2018, the Board of Directors (or a duly authorized committee thereof) declared cash dividends of $0.14 per share of common stock, or approximately $33 million in the aggregate. The dividend will be paid on September 4, 2018 to stockholders of record as of the close of business on August 1, 2018. Future quarterly dividends are subject to Board approval. Common Stock Repurchases On September 18, 2013, the Board of Directors approved our common stock repurchase program. From time to time, the Board of Directors has approved increases in the amount authorized to be purchased under that program. On February 2, 2017, the Board of Directors approved a further increase in that authorization to an aggregate of $2.1 billion. This program expires on December 31, 2019. We intend to repurchase shares of common stock in open market transactions in order to offset new shares issued under equity compensation programs and to provide for additional shareholder returns. During the second quarter of 2018, we repurchased 2,976,414 shares at an average price, including commissions, of $25.20 per share, or $75 million in the aggregate. During the first six months of 2018, we repurchased 3,851,092 shares at an average price, including commissions, of $25.97 per share, or $100 million in the aggregate. Since 2013, we repurchased 47,820,749 shares at an average price, including commissions, of $29.56 per share, or $1,413 million in the aggregate. In addition, we may repurchase shares delivered to us by employees as payment for the exercise price of stock options and the withholding taxes due upon the exercise of the stock options or the vesting or payment of stock awards. During the first six months of 2018, we did not repurchase any shares from employees.

CAPITAL STOCK

Dividends

In the first six months of 2018, we paid cash dividends of $67 million on our common stock. On July 14, 2018, the Board of Directors (or a duly authorized committee thereof) declared cash dividends of $0.14 per share of common stock, or approximately $33 million in the aggregate. The dividend will be paid on September 4, 2018 to stockholders of record as of the close of business on August 1, 2018. Future quarterly dividends are subject to Board approval.

Common Stock Repurchases

On September 18, 2013, the Board of Directors approved our common stock repurchase program. From time to time, the Board of Directors has approved increases in the amount authorized to be purchased under that program. On February 2, 2017, the Board of Directors approved a further increase in that authorization to an aggregate of $2.1 billion. This program expires on December 31, 2019. We intend to repurchase shares of common stock in open market transactions in order to offset new shares issued under equity compensation programs and to provide for additional shareholder returns. During the second quarter of 2018, we repurchased 2,976,414 shares at an average price, including commissions, of $25.20 per share, or $75 million in the aggregate. During the first six months of 2018, we repurchased 3,851,092 shares at an average price, including commissions, of $25.97 per share, or $100 million in the aggregate. Since 2013, we repurchased 47,820,749 shares at an average price, including commissions, of $29.56 per share, or $1,413 million in the aggregate.

In addition, we may repurchase shares delivered to us by employees as payment for the exercise price of stock options and the withholding taxes due upon the exercise of the stock options or the vesting or payment of stock awards. During the first six months of 2018, we did not repurchase any shares from employees.