Stock-Based Compensation - Narrative (Detail) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) installment $ / shares shares	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value per unit (in usd per share) | $ / shares	$ 40.31	$ 37.53	$ 53.26
Payments made to settle compensation classified as liability awards	$ 508	$ 415	$ 433
Restricted Stock Units and Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to the unvested portion of RSUs and PSUs	$ 745
Weighted-average period of unrecognized compensation expense related to the unvested portion of RSUs and PSUs (in years)	2 years
Share-based compensation	$ 795	$ 533	$ 609
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award performance cycle	3 years
2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares available for awards under the long-term incentive plan (in shares) | shares	50
2017 Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equal annual installments for award vesting | installment	3