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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	7,700
Shares reserved for issuance (in shares)	5,300
Number of years over which equity awards vest	1 year
Number of years over which equity awards expire	10 years
Share-based compensation, net of tax	$ 219	$ 209	$ 188
Unrecognized compensation cost	$ 235
Period over which unrecognized compensation costs are expected to be recognized (years)	1 year 7 months 6 days
Realized tax benefits from stock-based compensation activities	$ 67	78	124
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years over which equity awards vest	1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years over which equity awards vest	3 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years over which equity awards vest	3 years
Number of stock, granted (in shares)	613
Average grant date fair value per unit (in dollars per share)	$ 428.43
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years over which equity awards vest	1 year
Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years over which equity awards vest	3 years
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from exercise of stock options	$ 0	0	8
Performance Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years over which equity awards vest	3 years
Number of stock, granted (in shares)	100
Performance Stock Units (PSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of shares that can be earned from stock awards, as a percentage of the target award	0.00%
Performance Stock Units (PSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of shares that can be earned from stock awards, as a percentage of the target award	200.00%
Performance Stock Units (PSUs) | Remaining Half Of PSUs Granted In Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average grant date fair value per unit (in dollars per share)	$ 426.70
Performance Stock Units (PSUs) | Remaining PSUs Granted In Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average grant date fair value per unit (in dollars per share)	$ 417.72
Unallocated items
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intangible asset amortization expense	$ 277	$ 265	$ 238

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