Stock Compensation Plans - Options Rollforward (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Roll Forward of Stock Options Outstanding:
Stock options outstanding, beginning of period (in shares)	8,433	8,842	10,549
Stock options granted (in shares)	1,469	1,295	1,672
Stock options exercised (in shares)	(552)	(1,568)	(3,160)
Stock options canceled (in shares)	(170)	(136)	(219)
Stock options outstanding, end of period (in shares)	9,180	8,433	8,842
Stock options outstanding weighted average exercise price, beginning of period	$ 362.26	$ 312.95	$ 241.14
Stock options granted weighted average exercise price	577.64	629.57	536.27
Stock options exercised weighted average exercise price	295.51	295.46	191.43
Stock options canceled weighted average exercise price	570.44	476.90	312.94
Stock options outstanding weighted average exercise price, end of period	$ 396.89	$ 362.26	$ 312.95
Stock options exercised aggregate intrinsic value	$ 133	$ 606	$ 1,176
Stock options outstanding aggregate intrinsic value	$ 468
Stock options outstanding weighted average remaining contractual life (in years)	6 years	6 years	7 years
Stock options exercisable, end of period (in shares)	5,320	4,102	2,940
Stock options exercisable weighted average exercise price, end of period	$ 266.78	$ 237.45	$ 220.78
Stock options exercisable aggregate intrinsic value, end of period	$ 467
Stock options expected to vest, end of period (in shares)	3,860
Stock options expected to vest weighted average exercise price, end of period	$ 576.23
Stock options expected to vest aggregate intrinsic value, end of period	$ 0
Stock options granted weighted average grant date fair value	$ 172.24	$ 171.21	$ 148.02

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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