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Stock-Based Compensation Plans (Schedule Of Comparative Date for Performance Stock Units) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Per-share fair value	$ 545.69	$ 496.25	$ 482.66
Volatility	19.24%	22.29%	28.81%
Risk-free interest rate	4.99%	4.39%	0.87%
Service period (years)	2 years 10 months 24 days	2 years 10 months 24 days	2 years 10 months 24 days
Three-year measurement period ends December 31,	2025	2024	2023
Performance Based TSR [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of stock granted	8,107	7,983	6,277
Per-share fair value	$ 633.32	$ 595.70	$ 599.04
Volatility	25.50%	30.40%	30.20%
Risk-free interest rate	4.30%	1.70%	0.20%
Performance Based EPS [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of stock granted	8,107	7,983	6,277
Per-share fair value	$ 515.12	$ 459.77	$ 491.34

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Share Based Compensation Arrangement By Share Based Payment Award Expiration Year

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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.

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

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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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