Share-Based Compensation and Other Compensation Arrangements - Schedule of Stock Options Activity (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) $ / shares shares
Shares
Outstanding at beginning of year (in shares) | shares	903,999
Granted (in shares) | shares	428,975
Expired (in shares) | shares	(18,729)
Forfeited (in shares) | shares	(15,150)
Outstanding at end of the year (in shares) | shares	1,299,095
Weighted Average Exercise Price Per Option
Outstanding at beginning of year, weighted average exercised (in dollars per share) | $ / shares	$ 245.76
Weighted average exercise price, granted (in dollars per share) | $ / shares	227.33
Weighted average exercise price, expired (in dollars per share) | $ / shares	246.56
Weighted average exercise price, forfeited (in dollars per share) | $ / shares	260.98
Outstanding at end of year, weighted average exercised (in dollars per share) | $ / shares	$ 239.49
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding at end of year, weighted average remaining contractual life (in years)	7 years
Outstanding at end of year, aggregate intrinsic value | $	$ 2
Exercisable at end of year (in shares) | shares	721,844
Exercisable at end of year, weighted average exercise price (in dollars per share) | $ / shares	$ 254.33
Exercisable at end of year, weighted average remaining contractual life (in years)	5 years 4 months 24 days
Exercisable at end of year, aggregate intrinsic value | $	$ 0