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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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		115 Months Ended
	Feb. 05, 2020	Aug. 07, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Aug. 07, 2020
Share Repurchase Program
Increase in authorized amount	$ 1,000,000
Cumulative authorized amount	$ 13,800,000
Authorization effective period	3 years
Remaining balance under share repurchase program			$ 917,700		$ 917,700
Common stock repurchased, shares			185	1,633	1,669	2,560
Common stock repurchased, average price per share			$ 417.79	$ 366.76	$ 390.14	$ 359.63
Common stock repurchased, value			$ 76,974	$ 598,846	$ 651,011	$ 920,692
Subsequent event
Share Repurchase Program
Common stock repurchased, shares		100					77,900
Common stock repurchased, average price per share		$ 423.09					$ 165.10
Common stock repurchased, value		$ 35,800					$ 12,900,000