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Capital Stock
 12 Months Ended
Dec. 31, 2024
Capital Stock [Abstract]  
Capital Stock CAPITAL STOCK
The aggregate number of shares of all classes of stock which we are authorized to issue is up to 1,000,500,000, divided into two classes consisting of 500,000 shares of $1 par value preferred stock and 1,000,000,000 shares of common stock with a par
value of $0.10. No shares of preferred stock were outstanding on December 31, 2024.
We made no repurchases of shares in 2024. The manner, timing and amount of repurchases are determined by management based on an evaluation of market conditions, stock price and other factors and are subject to regulatory considerations. Purchases are made from time-to-time in the open market, in privately negotiated transactions or otherwise. On December 31, 2024 the total dollar value of shares that could be purchased under our authorized repurchase program was $1,033.
Shares reserved for future compensation grants of our common stock were 18 million and 20 million on December 31, 2024 and 2023.
Stock Options
We measure the cost of employee stock options based on the grant-date fair value and recognize that cost using the straight-line method over the period in which a recipient is required to provide services in exchange for the options, typically the vesting period. The weighted-average fair value per share of options is estimated on the date of grant using the Black-Scholes option pricing model.
Option Value and Assumptions
202420232022
Weighted-average fair value per share$118.22 $83.59 $68.08 
Assumptions:
Risk-free interest rate4.3 %4.0 %1.8 %
Expected dividend yield1.1 %1.2 %1.0 %
Expected stock price volatility29.9 %29.0 %27.0 %
Expected option life (years)6.36.25.9
The risk-free interest rate for periods within the expected life of options granted is based on the United States Treasury yield curve in effect at the time of grant. Expected stock price volatility is based on the historical volatility of our stock. The expected option life, representing the period of time that options granted are expected to be outstanding, is based on historical option exercise and employee termination data.
2024 Stock Option Activity
Shares
(in millions)		Weighted-Average
Exercise Price		Weighted-Average
Remaining
Term (in years)		Aggregate
Intrinsic
 Value
Outstanding January 111.5 $189.70 
Granted1.3 339.72 
Exercised(1.7)134.86 
Canceled or forfeited(0.3)274.74 
Outstanding December 3110.8 $214.87 5.3$1,572.6 
Exercisable December 316.6 $175.39 3.1$1,223.3 
Options expected to vest3.9 $275.67 7.7$331.8 
The aggregate intrinsic value of options, which represents the cumulative difference between the fair market value of the underlying common stock and the option exercise prices, exercised was $362, $318 and $218 in 2024, 2023 and 2022. Exercise prices for options outstanding ranged from $92.24 to $339.77 on December 31, 2024. On December 31, 2024 there was $159 of unrecognized compensation cost related to nonvested stock options granted under the long-term incentive plans. That cost is expected to be recognized as expense over the weighted-average period of approximately 1.5 years.
Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) Activity
Shares
(in millions)		Weighted-Average
Grant Date Fair Value
RSUsPSUsRSUsPSUs
Nonvested on January 10.7 0.2 $246.98 $250.17 
Granted0.3 0.1 332.64 305.99 
Vested(0.3)(0.1)244.18 233.95 
Canceled or forfeited— — 276.23 233.95 
Nonvested on December 310.7 0.2 $290.58 $287.51 
On December 31, 2024 there was $90 of unrecognized compensation cost related to nonvested RSUs. That cost is expected to be recognized as expense over the weighted-average period of approximately one year. The weighted-average grant date fair value per share of RSUs granted was $332.64 and $257.09 in 2024 and 2023. The fair value of RSUs and PSUs vested in 2024 was $81 and $23. On December 31, 2024 there was $23 of unrecognized compensation cost related to nonvested PSUs. That cost is expected to be recognized as expense over the weighted-average period of approximately one year.
Employee Stock Purchase Plans (ESPP)
Employees may participate in our ESPP provided they meet certain eligibility requirements. The purchase price for our common stock under the terms of the ESPP is defined as 95% of the closing stock price on the last trading day of a purchase period. We issued 173,708 and 190,524 shares under the ESPP in 2024 and 2023.