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Shareholders' Equity	3 Months Ended
	Mar. 31, 2019
Shareholders’ Equity [Abstract]
Shareholders' Equity	6. Shareholders’ Equity Through March 31, 2019, we had announced authorizations by our Board of Directors of repurchases of shares of common stock, which in the aggregate, authorized expenditures of up to $2.6 billion. Under the remaining repurchase authorizations, shares may be purchased from time to time in open market transactions, subject to market conditions.  As of March 31, 2019, $105,068 was available to repurchase shares under the announced repurchase authorizations. Shares repurchased are being held in treasury stock until they are reissued or retired at the discretion of the Board of Directors. During the three months ended March 31, 2019, 17 shares of common stock at a total cost of $10,368 were netted and surrendered as payment for minimum statutory withholding obligations in connection with the vesting of outstanding stock awards. Shares surrendered by the participants in accordance with the applicable award agreements and plan are deemed repurchased by us but are not part of publicly announced share repurchase programs.

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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.

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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

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