Equity and Cash Incentive Program - Fair Value Assumptions (Details) - $ / shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.59%	1.44%	2.51%
Dividend yield	1.62%	1.65%	2.13%
Expected life (years)	5 years 6 months	5 years 6 months	5 years 7 months 6 days
Volatility	30.49%	22.76%	22.35%
Grant price (in dollars per share)	$ 122.73	$ 119.86	$ 91.20
Fair value per share at date of grant (in dollars per share)	$ 29.08	$ 22.54	17.55
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.19%	1.40%
Dividend yield	1.62%	1.65%
Expected life (years)	2 years 10 months 24 days	2 years 10 months 24 days
Volatility	31.90%	23.30%
Grant price (in dollars per share)	$ 122.73	$ 119.86
Fair value per share at date of grant (in dollars per share)	$ 148.29	$ 165.71	$ 91.20

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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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809

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