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Common Stock | 12 Months Ended
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Dec. 31, 2018
Equity [Abstract] |
Common Stock | Common Stock During 2018, the Company repurchased 8.2 million shares of its common stock for total consideration of $675 million. In November 2016, the Board of Directors of the Company authorized the Company to repurchase up to $2.5 billion of the Company's common stock, which superseded any prior authorizations. The Company remains authorized to purchase additional shares of its common stock up to a value of approximately $866 million. There is no time limit on the authorization. During 2017, the Company purchased 11.5 million shares of its common stock for total consideration of $900 million. The Company issued approximately 3.3 million and 5.8 million shares related to stock compensation and employee stock purchase plans during the years ended December 31, 2018 and 2017, respectively.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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