| **Stock-Based Compensation And Employee Benefit Plans - Summary of ESPP Activity (Details) - Employee Stock - $ / shares shares in Millions** | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------------------------------------------------|-----------------|
||
| **Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]**                                                                             |            |   |   |
| Shares issued (in shares)                                                                                                                     | 0.8             | 0.7 | 0.6 |
| Weighted-Average Fair Values of Purchase Rights                                                                                               | $ 30.82         | $ 33.91 | $ 35.94 |
| Minimum                                                                                                                                       |            |   |   |
| **Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]**                                                                             |            |   |   |
| Exercise Prices for Purchase Rights                                                                                                           | 94.96           | 96.34 | 113.39 |
| Maximum                                                                                                                                       |            |   |   |
| **Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]**                                                                             |            |   |   |
| Exercise Prices for Purchase Rights                                                                                                           | $ 102.58        | $ 111.86 | $ 118.14 |

| X                                                                                                                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Espp Exercise Price For Shares Issued
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares issued during the period as a result of an employee stock purchase plan.
+ References
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| X                                                                                                                                         |
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| X                                                                                                                       |
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| X                                                                                                                       |
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