| **STOCK-BASED COMPENSATION PLANS - Narrative (Details) $ / shares in Units, $ in Millions**                                              | 1 Months Ended | 12 Months Ended |
|------------------------------------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                       |           |            |   |   |
| Number of additional shares authorized (in shares)                                                                                       | 5,000,000      |            |   |   |
| Number of shares authorized (in shares)                                                                                                  |           | 5,000,000       |   |   |
| Number of shares available for grant (in shares)                                                                                         |           | 3,000,000       |   |   |
| Issuance of common stock for employee stock plans and other | $                                                                          |           | $ 23            | $ 52 | $ 35 |
| Stock option awards granted (in shares)                                                                                                  |           | 0               |   |   |
| Weighted average fair value per share (in dollars per share) | $ / shares                                                                |           |            | $ 26.95 | $ 22.26 |
| Total intrinsic value of options exercised | $                                                                                           |           | $ 12            | $ 27 | $ 18 |
| Stock Option                                                                                                                             |           |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                       |           |            |   |   |
| Award vesting period (in years)                                                                                                          |           | 4 years         |   |   |
| Expiration period (in years)                                                                                                             |           | 10 years        |   |   |
| Compensation cost not yet recognized | $                                                                                                 |           | $ 5             |   |   |
| Compensation costs not yet recognized, period for recognition (in years)                                                                 |           | 2 years         |   |   |
| Restricted Stock                                                                                                                         |           |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                       |           |            |   |   |
| Compensation cost not yet recognized | $                                                                                                 |           | $ 41            |   |   |
| Compensation costs not yet recognized, period for recognition (in years)                                                                 |           | 2 years         |   |   |
| Fair value of shares vested | $                                                                                                          |           | $ 28            | $ 22 | $ 20 |
| Granted (in dollars per share) | $ / shares                                                                                              |           | $ 138.51        | $ 143.20 | $ 157.50 |
| Nonvested awards outstanding (in shares)                                                                                                 |           | 721,000         | 544,000 |   |
| Weighted-average grant date fair value per share of nonvested awards (in dollars per share) | $ / shares                                 |           | $ 145           | $ 155 |   |
| Vested (in shares)                                                                                                                       |           | 173,000         |   |   |
| Restricted Stock | Minimum                                                                                                               |           |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                       |           |            |   |   |
| Award vesting period (in years)                                                                                                          |           | 3 years         |   |   |
| Restricted Stock | Maximum                                                                                                               |           |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                       |           |            |   |   |
| Award vesting period (in years)                                                                                                          |           | 4 years         |   |   |
| Performance Shares                                                                                                                       |           |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                       |           |            |   |   |
| Award vesting period (in years)                                                                                                          |           | 3 years         |   |   |
| Compensation cost not yet recognized | $                                                                                                 |           | $ 15            |   |   |
| Compensation costs not yet recognized, period for recognition (in years)                                                                 |           | 1 year          |   |   |
| Fair value of shares vested | $                                                                                                          |           | $ 12            | $ 12 | $ 11 |
| Granted (in dollars per share) | $ / shares                                                                                              |           | $ 140.39        | $ 141.90 | $ 162.46 |
| Nonvested awards outstanding (in shares)                                                                                                 |           | 400,000         | 306,000 |   |
| Weighted-average grant date fair value per share of nonvested awards (in dollars per share) | $ / shares                                 |           | $ 145.06        | $ 162.77 |   |
| Vested (in shares)                                                                                                                       |           | 58,000          |   |   |
| Deferred Stock Units for Nonemployee Directors                                                                                           |           |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                       |           |            |   |   |
| Stock conversion ratio                                                                                                                   |           | 1               |   |   |
| Deferred stock units for nonemployee directors granted (in shares)                                                                       |           | 19,000          |   |   |
| Deferred stock units for nonemployee directors reinvested dividends (in shares)                                                          |           | 4,000           |   |   |
| Deferred stock units for nonemployee directors distributed (in shares)                                                                   |           | 24,000          |   |   |
| Deferred stock units for nonemployee directors granted weighted average fair value on grant date (in dollars per share) | $ / shares     |           | $ 141.85        |   |   |
| Deferred stock units for nonemployee directors reinvested weighted average fair value on grant date (in dollars per share) | $ / shares  |           | 145.15          |   |   |
| Deferred stock units for nonemployee directors distributed weighted average fair value on grant date (in dollars per share) | $ / shares |           | $ 89.91         |   |   |
| Deferred stock units for nonemployee directors outstanding (in shares)                                                                   |           | 127,000         |   |   |
| Deferred stock units for nonemployee directors outstanding weighted average fair value on grant date (in dollars per share) | $ / shares |           | $ 140.22        |   |   |

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The weighted-average grant date fair value of the deferred stock units for nonemployee directors dividends distributed during the period.
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The weighted-average grant date fair value of the deferred stock units for nonemployee directors outstanding as of the end of the period.
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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.
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Amount of cash inflow from exercise of option under share-based payment arrangement.
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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.
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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).
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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.
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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.
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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.
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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.
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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.
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Number of shares authorized for issuance under share-based payment arrangement.
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| - Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.
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| - Definition
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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| - Definition
Net number of share options (or share units) granted during the period.
+ References
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| - Definition
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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| - Definition
Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
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