Earnings Per Share - Computation of Basic and Diluted Earnings per Share ("EPS") under Treasury Stock Method (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Earnings Per Share Basic And Diluted [Line Items]
Net Income (Loss)	$ 1,593	$ 1,495	$ 3,103	$ 3,068
Basic weighted-average shares outstanding	154,868,992	148,442,950	154,953,413	148,566,061
Total diluted weighted-average shares outstanding	156,253,855	149,657,889	156,442,469	149,891,535
Basic earnings per share	$ 10.29	$ 10.07	$ 20.03	$ 20.65
Diluted earnings per share	$ 10.19	$ 9.99	$ 19.83	$ 20.47
Restricted Stock Units (RSUs) [Member]
Earnings Per Share Basic And Diluted [Line Items]
Dilutive effect of	987,101	794,413	1,049,052	869,374
Employee Stock Option
Earnings Per Share Basic And Diluted [Line Items]
Dilutive effect of	397,762	420,526	440,004	456,100

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details