Share-based and Deferred Compensation Plans (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Years $ / shares Rate shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate (in hundredths)	3.60%	1.70%	0.50%
Expected term (years)	5 years 10 months 24 days	6 years 7 months 6 days	6 years 3 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	22.00%	25.00%	27.00%
Expected dividend yield (in hundredths)	1.80%	1.90%	1.90%
Options outstanding at the end of the year (in shares) | shares	309
Options outstanding at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares	$ 103.33
SARs outstanding at the end of the year (in shares) | shares	9,795
SARs outstanding at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares	$ 92.25
Share-based Compensation Expense	$ 95.0	$ 82.0	$ 75.0
Share-based Payment Arrangement, Expense, Tax Benefit	12.0	16.0	15.0
Cash received from stock options exercises	8.0	3.0	11.0
Share-based Payment Arrangement, Exercise of Option, Tax Benefit	$ 31.0	$ 38.0	$ 72.0
Long Term Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting period of outstanding awards (in years)	immediate
Maximum vesting period of outstanding awards (in years)	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Approximate number of shares available for grant (in shares) | shares	23,000
Executive Income Deferral Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of Company match on amount deferred (in hundredths) | Rate	33.00%
Stock Options and Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting period of outstanding awards (in years)	1.7
Options outstanding at the end of the year (in shares) | shares	10,104	11,281
Granted (in shares) | shares	1,057
Exercised (in shares) | shares	(2,016)
Forfeited or expired (in shares) | shares	(218)
Exercisable at the end of the year (in shares) | shares	7,499
Options outstanding at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares	$ 92.58	$ 86.18
Granted, Weighted-average exercise price (in dollars per share) | $ / shares	131.28
Exercised, Weighted-average exercise price (in dollars per share) | $ / shares	74.33
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | $ / shares	117.63
Exercisable at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares	$ 83.37
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	6 years 5 months 8 days
Share Based Compensation Arrangement By Share Based Payment Award, Options, Exercisable Weighted Average Remaining Contractual Term	5 years 6 months 14 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 385.0
Exercisable at the end of the year, Aggregate intrinsic value (in dollars)	$ 355.0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 29.93	$ 26.65	$ 21.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 114.0	$ 105.0	$ 234.0
Unrecognized compensation cost	35.0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	31.0	31.0	35.0
Share-based Compensation Expense	27.0	26.0	29.0
Restricted Stock Units And Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 59.0
Unvested RSUs and PSUs | shares	1,200
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	$ 84.0	20.0	20.0
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Expense	$ 35.0	27.0	16.0
Restricted Stock Units (RSUs) [Member] | Executive Income Deferral Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	2 years
Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Expense	$ 33.0	$ 29.0	$ 30.0
Executives [Member] | Long Term Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Vesting period (in years)	4 years
Graded vesting schedule of grants made to executives under other stock award plans	25
Share-based Compensation Arrangement by Share-based Payment Award, Average Exercise Period | Years	5.9