TREASURY STOCK	12 Months Ended
Dec. 31, 2014
Equity [Abstract]
TREASURY STOCK	TREASURY STOCK In the second quarter of 2013, the Company's Board of Directors authorized a program to purchase $1.0 billion of the Company's common stock, in addition to amounts previously authorized. In the second quarter of 2013, the Company repurchased 431,910 shares for an aggregate cost of $345.5 million in privately negotiated, off-market transactions and in the third and fourth quarters of 2014, the Company repurchased 114,645 shares of its common stock in privately negotiated, off-market transactions and 438,897 shares of its common stock in the open market for aggregate costs of $147.3 million and $500.0 million, respectively, related to this authorization. The Company has $7.2 million remaining to repurchase common stock related to this authorization. In connection with the issuance of the 2018 Notes, the Company repurchased 263,913 shares in the first quarter of 2012 for an aggregate cost of $166.2 million. In the third quarter of 2013, the Company repurchased 484,361 shares for an aggregate cost of $459.2 million. These shares were covered under our remaining authorizations as of December 31, 2012 to repurchase common stock. In October 2013, the Company settled Conversion Spread Hedges and received 42,160 shares of common stock, with a fair value of $43.1 million, from the counterparties (see Note 7 for further detail on the Conversion Spread Hedges). The Board of Directors has also given the Company the general authorization to repurchase shares of its common stock to satisfy employee withholding tax obligations related to stock-based compensation. In the years ended December 31, 2014, 2013 and 2012, the Company repurchased 77,761, 113,503, and 141,229 shares at an aggregate cost of approximately $103.1 million, $78.8 million and $90.8 million, respectively, to satisfy employee withholding taxes related to stock-based compensation. The Company may make additional repurchases of shares under its stock repurchase program, depending on prevailing market conditions, alternate uses of capital and other factors. On February 5, 2015, the Company's Board of Directors authorized the Company to repurchase up to an additional $3.0 billion of the Company's common stock. Whether and when to initiate and/or complete any purchase of common stock and the amount of common stock purchased will be determined in the Company's complete discretion. As of December 31, 2014, there were approximately 9.9 million shares of the Company's common stock held in treasury.

TREASURY STOCK

In the second quarter of 2013, the Company's Board of Directors authorized a program to purchase $1.0 billion of the Company's common stock, in addition to amounts previously authorized. In the second quarter of 2013, the Company repurchased 431,910 shares for an aggregate cost of $345.5 million in privately negotiated, off-market transactions and in the third and fourth quarters of 2014, the Company repurchased 114,645 shares of its common stock in privately negotiated, off-market transactions and 438,897 shares of its common stock in the open market for aggregate costs of $147.3 million and $500.0 million, respectively, related to this authorization. The Company has $7.2 million remaining to repurchase common stock related to this authorization.

In connection with the issuance of the 2018 Notes, the Company repurchased 263,913 shares in the first quarter of 2012 for an aggregate cost of $166.2 million.

In the third quarter of 2013, the Company repurchased 484,361 shares for an aggregate cost of $459.2 million. These shares were covered under our remaining authorizations as of December 31, 2012 to repurchase common stock.

In October 2013, the Company settled Conversion Spread Hedges and received 42,160 shares of common stock, with a fair value of $43.1 million, from the counterparties (see Note 7 for further detail on the Conversion Spread Hedges).

The Board of Directors has also given the Company the general authorization to repurchase shares of its common stock to satisfy employee withholding tax obligations related to stock-based compensation. In the years ended December 31, 2014, 2013 and 2012, the Company repurchased 77,761, 113,503, and 141,229 shares at an aggregate cost of approximately $103.1 million, $78.8 million and $90.8 million, respectively, to satisfy employee withholding taxes related to stock-based compensation.

The Company may make additional repurchases of shares under its stock repurchase program, depending on prevailing market conditions, alternate uses of capital and other factors. On February 5, 2015, the Company's Board of Directors authorized the Company to repurchase up to an additional $3.0 billion of the Company's common stock. Whether and when to initiate and/or complete any purchase of common stock and the amount of common stock purchased will be determined in the Company's complete discretion. As of December 31, 2014, there were approximately 9.9 million shares of the Company's common stock held in treasury.