Stock-Based Compensation (Summary of Restricted Stock Unit and Performance Based Restricted Stock Unit Activity) (Details) shares in Thousands	9 Months Ended
Sep. 30, 2022 $ / shares shares
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Outstanding \| shares	243
Number of Shares, Granted \| shares	105
Number of Shares, Vested \| shares	(116)
Number of Shares, Forfeited/canceled \| shares	(8)
Number of Shares, Outstanding \| shares	224
Weighted-Average Grant Date Fair Value per Share, Outstanding \| $ / shares	$ 230.20
Weighted-Average Grant Date Fair Value per Share, Granted \| $ / shares	329.40
Weighted-Average Grant Date Fair Value per Share, Vested \| $ / shares	219.41
Weighted-Average Grant Date Fair Value per Share, Forfeited/canceled \| $ / shares	281.00
Weighted-Average Grant Date Fair Value per Share, Outstanding \| $ / shares	$ 280.87
Performance Stock Units (PSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Outstanding \| shares	298
Number of Shares, Granted \| shares	140
Number of Shares, Vested \| shares	(2)
Number of Shares, Forfeited/canceled \| shares	(6)
Number of Shares, Outstanding \| shares	430
Weighted-Average Grant Date Fair Value per Share, Outstanding \| $ / shares	$ 304.46
Weighted-Average Grant Date Fair Value per Share, Granted \| $ / shares	389.44
Weighted-Average Grant Date Fair Value per Share, Vested \| $ / shares	330.97
Weighted-Average Grant Date Fair Value per Share, Forfeited/canceled \| $ / shares	329.07
Weighted-Average Grant Date Fair Value per Share, Outstanding \| $ / shares	$ 332.30
Performance period	3 years

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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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