Increase in amount authorized under the Company's board-approved share repurchase program.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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- Definition

Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased and retired during the period.

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the par value method.

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Share Repurchase Program (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands			1 Months Ended	3 Months Ended		6 Months Ended		103 Months Ended
	May 31, 2019	Nov. 13, 2018	Aug. 08, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Aug. 08, 2019
Share Repurchase Program
Increase in authorized amount	$ 1,000,000	$ 1,000,000
Cumulative authorized amount	$ 12,800,000
Authorization effective period	3 years	3 years
Remaining balance under share repurchase program				$ 1,100,000		$ 1,100,000
Common stock repurchased, shares				1,633	1,575	2,560	3,763
Common stock repurchased, average price per share				$ 366.76	$ 264.38	$ 359.63	$ 256.64
Common stock repurchased, value				$ 598,846	$ 416,402	$ 920,692	$ 965,830
Subsequent event [Member]
Share Repurchase Program
Common stock repurchased, shares			500					75,300
Common stock repurchased, average price per share			$ 375.47					$ 157.22
Common stock repurchased, value			$ 174,600					$ 11,800,000