Equity - Stock-Based Compensation (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	100,000,000
Retirement-eligible employees' age	55 years
Minimum number of years of services	10 years
Pre-tax compensation expense	$ 753	$ 430	$ 421
Tax benefit	131	80	73
After-tax compensation expense	622	350	348
Realized excess tax benefits from the exercise of stock options	34	15	78
Cost of products sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	47	29	27
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	247	171	169
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 459	$ 230	$ 225

Represents retirement eligible employees' age.

No definition available.

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- Definition

Represents the minimum of number of years of services that employees have to work for the company in order to be eligible to retire with benefits.

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
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- Definition

Amount, after tax, of expense for award under share-based payment arrangement.

+ References

No definition available.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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