Capital Stock	12 Months Ended
Dec. 31, 2017
Equity [Abstract]
Capital Stock	NOTE 12 — CAPITAL STOCK The amended and restated certificate of incorporation authorizes the Company to issue up to 1,800,000,000 shares of common stock, and our amended and restated by-laws set the number of directors constituting the board of directors of the Company at not less than three members, the exact number to be determined from time to time by resolution adopted by the affirmative vote of a majority of the total number of directors then in office. Share Repurchase Transactions During October 2017, our board of directors authorized a share repurchase program for up to $2 billion of our outstanding common stock. During 2017, we repurchased 25.092 million shares of our common stock at an average price of $81.73 per share through market purchases pursuant to the $2.0 billion November 2016 (which was completed during the fourth quarter of 2017) and the $2 billion October 2017 share repurchase programs. At December 31, 2017, we had $1.802 billion of repurchase authorization available under the October 2017 authorization. During November 2016, our board of directors authorized a share repurchase program for up to $2 billion of our outstanding common stock. During May 2016, the Company repurchased 9.361 million shares of its common stock beneficially owned by affiliates of Kohlberg Kravis Roberts & Co. at a purchase price of $80.12 per share, the closing price of the Company’s common stock on the New York Stock Exchange on May 10, 2016, less a discount of 1%. During 2016, we also repurchased 26.964 million shares of our common stock at an average price of $74.20 per share through market purchases, resulting in total repurchases of 36.325 million shares of our common stock at an average price of $75.72 per share for the year ended December 31, 2016 pursuant to the $3 billion October 2015 (which was completed during the fourth quarter of 2016) and the $2 billion November 2016 share repurchase programs. At December 31, 2016, we had $1.853 billion of repurchase authorization available under the November 2016 authorization. During October 2015, May 2015 and February 2015, our board of directors authorized share repurchase programs for up to $3 billion, $1 billion and $1 billion, respectively, of our outstanding common stock. During April 2015, the Company entered into an agreement to repurchase 3.806 million shares of its common stock beneficially owned by affiliates of Bain Capital Investors, LLC (the “Bain Entities”) and certain charitable organizations that received shares of common stock as charitable contributions from certain partners and other employees of the Bain Entities at a purchase price of $77.26 per share, the closing price of the Company’s common stock on the New York Stock Exchange on April 17, 2015, less a discount of 1%. During 2015, we also repurchased 28.185 million shares of our common stock at an average price of $74.62 per share through market purchases, resulting in total repurchases pursuant to the October 2015, May 2015 and February 2015 authorizations of 31.991 million shares of our common stock at an average price of $74.93 per share. At December 31, 2015, we had $2.603 billion of repurchase authorization available under the $3.0 billion October 2015 authorization.

NOTE 12 — CAPITAL STOCK

The amended and restated certificate of incorporation authorizes the Company to issue up to 1,800,000,000 shares of common stock, and our amended and restated by-laws set the number of directors constituting the board of directors of the Company at not less than three members, the exact number to be determined from time to time by resolution adopted by the affirmative vote of a majority of the total number of directors then in office.

Share Repurchase Transactions

During October 2017, our board of directors authorized a share repurchase program for up to $2 billion of our outstanding common stock. During 2017, we repurchased 25.092 million shares of our common stock at an average price of $81.73 per share through market purchases pursuant to the $2.0 billion November 2016 (which was completed during the fourth quarter of 2017) and the $2 billion October 2017 share repurchase programs. At December 31, 2017, we had $1.802 billion of repurchase authorization available under the October 2017 authorization.

During November 2016, our board of directors authorized a share repurchase program for up to $2 billion of our outstanding common stock. During May 2016, the Company repurchased 9.361 million shares of its common stock beneficially owned by affiliates of Kohlberg Kravis Roberts & Co. at a purchase price of $80.12 per share, the closing price of the Company’s common stock on the New York Stock Exchange on May 10, 2016, less a discount of 1%. During 2016, we also repurchased 26.964 million shares of our common stock at an average price of $74.20 per share through market purchases, resulting in total repurchases of 36.325 million shares of our common stock at an average price of $75.72 per share for the year ended December 31, 2016 pursuant to the $3 billion October 2015 (which was completed during the fourth quarter of 2016) and the $2 billion November 2016 share repurchase programs. At December 31, 2016, we had $1.853 billion of repurchase authorization available under the November 2016 authorization.

During October 2015, May 2015 and February 2015, our board of directors authorized share repurchase programs for up to $3 billion, $1 billion and $1 billion, respectively, of our outstanding common stock. During April 2015, the Company entered into an agreement to repurchase 3.806 million shares of its common stock beneficially owned by affiliates of Bain Capital Investors, LLC (the “Bain Entities”) and certain charitable organizations that received shares of common stock as charitable contributions from certain partners and other employees of the Bain Entities at a purchase price of $77.26 per share, the closing price of the Company’s common stock on the New York Stock Exchange on April 17, 2015, less a discount of 1%. During 2015, we also repurchased 28.185 million shares of our common stock at an average price of $74.62 per share through market purchases, resulting in total repurchases pursuant to the October 2015, May 2015 and February 2015 authorizations of 31.991 million shares of our common stock at an average price of $74.93 per share. At December 31, 2015, we had $2.603 billion of repurchase authorization available under the $3.0 billion October 2015 authorization.