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Share-Based Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Assumptions Used to Determine Weighted-Average Fair Value of Options Granted The weighted average fair value of options granted in 2023, 2022 and 2021 was $21.69, $15.45 and $9.80 per option, respectively, and were determined using the following assumptions:
Years Ended December 31202320222021
Expected dividend yield3.1 %3.1 %3.1 %
Risk-free interest rate3.4 %3.0 %1.0 %
Expected volatility22.4 %22.5 %20.9 %
Expected life (years)5.85.95.9
Summarized Information Relative to Stock Option Plan Activity
Summarized information relative to stock option plan activity (options in thousands) is as follows:
Number
of Options		Weighted
Average
Exercise
Price		Weighted
Average
Remaining
Contractual
Term (Years)		Aggregate
Intrinsic
Value
Outstanding January 1, 2023
13,719 $70.55 
Granted1,826 117.89 
Exercised(1,934)64.57 
Forfeited(84)111.37   
Outstanding December 31, 2023
13,527 $77.54 6.2$442 
Vested and expected to vest December 31, 202313,119 $76.63 6.1$438 
Exercisable December 31, 20239,451 $68.97 5.2$379 
Additional Information Pertaining to Stock Option Plans
Additional information pertaining to stock option plans is provided in the table below:
Years Ended December 31202320222021
Total intrinsic value of stock options exercised$95 $225 $106 
Fair value of stock options vested30 30 27 
Cash received from the exercise of stock options125 384 202 
Summary of Nonvested RSU and PSU Activity
A summary of nonvested RSU and PSU activity (shares in thousands) is as follows:
 RSUsPSUs
  Number
of Shares		Weighted
Average
Grant Date
Fair Value		Number
of Shares		Weighted
Average
Grant Date
Fair Value
Nonvested January 1, 2023
12,700 $81.25 2,021 $78.60 
Granted6,438 117.46 685 108.97 
Vested(5,921)79.35 (683)73.03 
Forfeited(675)93.06 (57)89.66 
Nonvested December 31, 202312,542 $100.10 1,966 $90.80 
Expected to vest December 31, 202311,171 $99.17 1,847 $89.91