Stock Compensation - Exercise Price Range (Details) - Employee Stock Option - Long-term incentive and director compensation plans - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum (in dollars per share)	$ 28.13
Exercise Price Range, Maximum (in dollars per share)	$ 161.98
Number Outstanding (Shares)	27,995,277	32,493,944
Weighted Average Remaining Contractual Life (Years)	5 years 9 months 18 days
Options Outstanding Weighted Average Exercise Price per Share (in dollars per share)	$ 79.69	$ 66.57
Number Exercisable (Shares)	17,221,451
Options Exercisable Weighted Average Exercise Price per Share (in dollars per share)	$ 59.33

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

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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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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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

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