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Share-Based Payments (Weighted-Average Fair Value of Options and Stock Per Share) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restricted Stock Units (RSUs) [Member]
Stock, weighted average grant date fair value	$ 76.09	$ 64.03	$ 62.91
Employee Stock Purchase Plan [Member]
Options, weighted average grant date fair value	4.43	4.69	4.82
Discount of grant date market value	12.61	10.98	8.61
Total ESPP	17.04	15.67	13.43
Agent Stock Purchase Plan [Member]
Stock, weighted average grant date fair value	$ 8.28	$ 7.57	$ 5.73

X

- Definition

The weighted average fair value discount at grant date, for employee stock purchase plan shares issued during the period.

+ References

No definition available.

+ Details

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X

- Definition

The total weighted average fair value at grant date for employee stock purchase plan shares issued during the period.

+ References

No definition available.

+ Details

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X

- Definition

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).

+ 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)(iii)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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X

- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ 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 (d)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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