Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of assumptions used to determine fair value of stock options granted

The fair values of stock options granted were estimated on the date of grant using a binomial option-pricing model with the following assumptions:

	2021
Expected life (in years)	6.5
Average risk-free interest rate	0.6	%
Expected volatility	29.3	%
Expected dividend yield	0	%

Summary of stock option activity

A summary of stock option activity is as follows:

	Shares (In thousands)	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (In millions)
Stock options outstanding - December 31, 2022	6,336	$	62.91
Granted	—	—
Forfeited	(38)	112.83
Exercised	(2,433)	47.11
Stock options outstanding - December 31, 2023	3,865	$	72.36	3.74	$	234
Stock options exercisable - December 31, 2023	3,574	$	69.10	3.52	$	228

Summary of restricted stock and performance activity

A summary of restricted stock unit, restricted stock award and performance share unit activity is as follows:

	Restricted Stock Units and Awards			Performance Share Units
	Shares (In thousands)	Weighted- Average Grant Date Fair Value		Shares (In thousands)	Weighted- Average Grant Date Fair Value
Units and awards - December 31, 2022	5,530	$	96.88	3,243	$	100.93
Granted	2,664	113.52		372	131.66
Forfeited	(453)	102.97		(269)	102.03
Vested	(2,322)	99.51		(127)	101.54
Units and awards - December 31, 2023	5,419	$	103.11	3,219	$	104.09

Schedule of additional information related to stock option and restricted stock unit activity

The table below presents additional information related to stock option and restricted stock unit activity:

(In millions)	2023		2022		2021
Total intrinsic value of stock options exercised	$	177	$	226	$	339
Fair value of restricted stock units vested	267		335		332
Income tax benefit from stock options exercised and restricted stock units vested	101		109		142
Cash received from stock options exercised	62		105		91