Treasury Stock	9 Months Ended
Sep. 30, 2014
Equity [Abstract]
TREASURY STOCK	TREASURY STOCK Stock Repurchase Program The Company’s Board of Directors authorized an ongoing stock repurchase program with a total repurchase authority granted to the Company of $5.4 billion. The Company may use the approved dollar authority to repurchase stock at any time until the approved amount is exhausted. The objective of the Company’s stock repurchase program is to improve stockholders’ returns. At September 30, 2014, approximately $328.3 million was available to repurchase common stock pursuant to the stock repurchase program. All shares repurchased are recorded as treasury stock. A portion of the funds used to repurchase stock over the course of the program was provided by net proceeds from the Convertible Notes offering, as well as proceeds from employee stock option exercises and the related tax benefit. The Company is authorized to make open market purchases of its common stock using general corporate funds through open market purchases, pursuant to a Rule 10b5-1 plan or in privately negotiated transactions. During the second quarter of 2014, the Company used a portion of the net proceeds from the Convertible Notes offering and existing cash and investments to repurchase an aggregate of approximately $1.5 billion of its common stock as authorized under the stock repurchase program. Of this $1.5 billion, the Company used approximately $101.0 million to purchase 1.7 million shares from certain purchasers of the Convertible Notes in privately negotiated transactions concurrently with the closing of the offering, and the remaining $1.4 billion to purchase additional shares of common stock under the ASR Agreement. The Company paid $1.4 billion to the ASR Counterparty under the ASR Agreement and received approximately 19.2 million shares of its common stock from the ASR Counterparty, which represents 80 percent of the shares pursuant to the ASR agreement. The total number of shares of common stock that the Company will repurchase under the ASR Agreement will be based on the average of the daily volume-weighted average prices of the common stock during the term of the ASR Agreement, less a discount. In October 2014, the ASR Counterparty elected to accelerate the ASR Agreement. Accordingly, the Company received delivery of 2,630,333 shares of its common stock in October 2014 in final settlement of the ASR Agreement. During the three and nine months ended September 30, 2014, the Company expended approximately $99.9 million on open market purchases under the stock repurchase program, repurchasing 1,434,400 shares of outstanding common stock at an average price of $69.71. During the three months ended September 30, 2013, the Company expended approximately $55.3 million on open market purchases under the stock repurchase program, repurchasing 764,800 shares of outstanding common stock at an average price of $72.30. During the nine months ended September 30, 2013, the Company expended approximately $156.3 million on open market purchases, repurchasing 2,240,050 shares of outstanding common stock at an average price of $69.79. Shares for Tax Withholding During the three months ended September 30, 2014, the Company withheld 75,797 shares from stock units that vested, totaling $4.9 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. During the nine months ended September 30, 2014, the Company withheld 470,567 shares from stock units that vested, totaling $27.8 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. These shares are reflected as treasury stock in the Company’s condensed consolidated balance sheets and the related cash outlays do not reduce the Company’s total stock repurchase authority. During the three months ended September 30, 2013, the Company withheld 43,035 shares from stock units that vested, totaling $2.9 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. During the nine months ended September 30, 2013, the Company withheld 389,369 shares from stock units that vested, totaling $27.7 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. These shares are reflected as treasury stock in the Company’s condensed consolidated balance sheets and the related cash outlays do not reduce the Company’s total stock repurchase authority.

TREASURY STOCK

Stock Repurchase Program

The Company’s Board of Directors authorized an ongoing stock repurchase program with a total repurchase authority granted to the Company of $5.4 billion. The Company may use the approved dollar authority to repurchase stock at any time until the approved amount is exhausted. The objective of the Company’s stock repurchase program is to improve stockholders’ returns. At September 30, 2014, approximately $328.3 million was available to repurchase common stock pursuant to the stock repurchase program. All shares repurchased are recorded as treasury stock. A portion of the funds used to repurchase stock over the course of the program was provided by net proceeds from the Convertible Notes offering, as well as proceeds from employee stock option exercises and the related tax benefit. The Company is authorized to make open market purchases of its common stock using general corporate funds through open market purchases, pursuant to a Rule 10b5-1 plan or in privately negotiated transactions.

During the second quarter of 2014, the Company used a portion of the net proceeds from the Convertible Notes offering and existing cash and investments to repurchase an aggregate of approximately $1.5 billion of its common stock as authorized under the stock repurchase program. Of this $1.5 billion, the Company used approximately $101.0 million to purchase 1.7 million shares from certain purchasers of the Convertible Notes in privately negotiated transactions concurrently with the closing of the offering, and the remaining $1.4 billion to purchase additional shares of common stock under the ASR Agreement. The Company paid $1.4 billion to the ASR Counterparty under the ASR Agreement and received approximately 19.2 million shares of its common stock from the ASR Counterparty, which represents 80 percent of the shares pursuant to the ASR agreement. The total number of shares of common stock that the Company will repurchase under the ASR Agreement will be based on the average of the daily volume-weighted average prices of the common stock during the term of the ASR Agreement, less a discount. In October 2014, the ASR Counterparty elected to accelerate the ASR Agreement. Accordingly, the Company received delivery of 2,630,333 shares of its common stock in October 2014 in final settlement of the ASR Agreement.

During the three and nine months ended September 30, 2014, the Company expended approximately $99.9 million on open market purchases under the stock repurchase program, repurchasing 1,434,400 shares of outstanding common stock at an average price of $69.71.

During the three months ended September 30, 2013, the Company expended approximately $55.3 million on open market purchases under the stock repurchase program, repurchasing 764,800 shares of outstanding common stock at an average price of $72.30. During the nine months ended September 30, 2013, the Company expended approximately $156.3 million on open market purchases, repurchasing 2,240,050 shares of outstanding common stock at an average price of $69.79.

Shares for Tax Withholding

During the three months ended September 30, 2014, the Company withheld 75,797 shares from stock units that vested, totaling $4.9 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. During the nine months ended September 30, 2014, the Company withheld 470,567 shares from stock units that vested, totaling $27.8 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. These shares are reflected as treasury stock in the Company’s condensed consolidated balance sheets and the related cash outlays do not reduce the Company’s total stock repurchase authority.

During the three months ended September 30, 2013, the Company withheld 43,035 shares from stock units that vested, totaling $2.9 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. During the nine months ended September 30, 2013, the Company withheld 389,369 shares from stock units that vested, totaling $27.7 million, to satisfy minimum tax withholding obligations that arose on the vesting of stock units. These shares are reflected as treasury stock in the Company’s condensed consolidated balance sheets and the related cash outlays do not reduce the Company’s total stock repurchase authority.