Common Stock

6 Months Ended

Jun. 30, 2011

Common Stock [Abstract]

Common Stock

Note 7 — Common stock

     On May 27, 2011, we entered into agreements to repurchase shares of our common stock for an aggregate purchase price of $1,750.0 million under an Accelerated Share Repurchase (ASR) agreement. Upon payment of the purchase price on May 27, 2011, we received 29.4 million shares of our common stock at a price of $59.53 per share. At the conclusion of the ASR program, we may receive additional shares, or we may be required to pay additional cash or shares (at our option), based on the daily volume-weighted average price of our common stock over a period beginning after the effective date of the ASR agreements and ending on or before December 16, 2011, subject to extension in accordance with the terms of the agreements. The agreements are subject to an accelerated settlement provision at the option of the investment bank. If the mean daily volume-weighted average price of our common stock, less a discount (the “forward price”), during the term of the ASR program falls below $59.53 per share, the investment bank would be required to deliver additional shares to us. If the forward price rises above $59.53 per share, we would be required to deliver cash or shares, at our option, to the investment bank. Under the terms of the contract, the maximum number of shares that could be received or delivered under the contracts is 58.8 million. As of June 30, 2011, based on the daily volume-weighted average price of our common stock since the effective date of the agreements, the investment banks would be required to deliver 2.7 million shares to us. These shares were not included in the calculation of diluted weighted average common shares outstanding during the period because their effect was anti-dilutive.

     The ASR agreement is accounted for as an initial treasury stock transaction and a forward stock purchase contract. The forward stock purchase contracts are classified as equity instruments under applicable accounting guidance and were deemed to have a fair value of zero at the effective date. The initial repurchase of shares resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net income per share on the effective date of the agreements.

     In addition to the shares repurchased through the ASR, we repurchased 13.0 million shares under our existing stock repurchase program using internally generated cash during the three and six months ended June 30, 2011 for $765.7 million. Repurchases during the quarter were financed primarily with the proceeds from our 2016 Senior Notes discussed in Note 6, in addition to internally generated cash. Additionally, during the second quarter of 2011, our Board of Directors approved an increase to our stock repurchase program of 50 million shares.