v3.26.1
Capital Stock - Schedule of Stock Option Activity (Details)
$ / shares in Units, shares in Millions, $ in Millions
 6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Number of Shares  
Outstanding at beginning of period (in shares) | shares 3.1
Granted (in shares) | shares 0.9
Exercised (in shares) | shares (0.2)
Forfeited or expired (in shares) | shares (0.1)
Outstanding at end of period (in shares) | shares 3.7
Weighted- Average Option Price per Share  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 373.90
Granted (in dollars per share) | $ / shares 295.96
Exercised (in dollars per share) | $ / shares 207.29
Forfeited or expired (in dollars per share) | $ / shares 380.26
Outstanding at end of period (in dollars per share) | $ / shares $ 361.36
Stock Options, Additional Disclosures  
Exercisable at end of period (in shares) | shares 2.3
Exercisable at end of period (in dollars per share) | $ / shares $ 372.60
Outstanding at end of period, Weighted-Average Remaining Contractual Life 6 years 3 months
Exercisable at end of period, Weighted-Average Remaining Contractual Life 4 years 7 months 13 days
Outstanding at end of period, Aggregate Intrinsic Value | $ $ 204
Exercisable at end of period, Aggregate Intrinsic Value | $ $ 123