Employee Service Share-based Compensation, Tax Benefit Realized from Vesting of Deferred Stock Awards.

No definition available.

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- Definition

The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested But Not Issued

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested But Not Issued, Weighted Average Grant Date Fair Value

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Plan Modification, Incremental Allocated Share-Based Compensation Expense

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were converted at the April 1 and June 3 separations.

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No definition available.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan, which was impacted by the conversion of awards resulting from the April 1 and June 3 separations.

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No definition available.

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- Definition

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

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

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

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- Definition

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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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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- Definition

The number of grants made 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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- 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).

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- Definition

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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- Definition

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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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

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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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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.

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No definition available.

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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- Definition

Number of grantees affected by modification of award under share-based payment arrangement.

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- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

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Equity impact of the value of stock bought back by the entity at the exercise price or redemption price.

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STOCK-BASED COMPENSATION (Restricted Stock Units) (Details) $ / shares in Units, $ in Millions	6 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($) employees $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense		$ 158	$ 188	$ 310
Share-based Payment Arrangement, Expense, Tax Benefit		36	$ 42	$ 115
Share-based Payment Arrangement, Plan Modification, Incremental Cost		$ 0
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number \| shares		2,454,000	9,735,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value \| $ / shares		$ 59.98	$ 57.41
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period \| shares		1,821,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares		$ 54.78	$ 71.46	$ 61.29
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period \| shares		7,045,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value \| $ / shares		$ 53.22
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period \| shares		156,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value \| $ / shares		$ 60.84
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Period Increase (Decrease) \| shares		(1,901,000)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Conversion Impact, Weighted Average Grant Date Fair Value \| $ / shares		$ 65.87
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$ 375	$ 382	$ 179
Employee Service Share-based Compensation, Tax Benefit Realized from Vesting of Deferred Stock Awards		84	86	66
Share-based Payment Arrangement, Expense		110	144	178
Share-based Payment Arrangement, Expense, Tax Benefit		25	32	$ 66
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 80
Employee Service Share-based Compensation, Nonvested, Total Compensation Cost not yet recognized and period for recognition in years		1 year 9 months 29 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested But Not Issued \| shares		2,200,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested But Not Issued, Weighted Average Grant Date Fair Value \| $ / shares		$ 60.79
Share-based Payment Arrangement, Plan Modification, Incremental Cost		$ 25
Share-Based Compensation Arrangement By Share-Based Payment Award, Plan Modification, Incremental Allocated Share-Based Compensation Expense	$ 20	$ 5
Share-based Payment Arrangement, Plan Modification, Number of Grantees Affected \| employees		5,000
Restricted Stock Units (RSUs) [Member] \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock Units (RSUs) [Member] \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		2 years
Executive Officer [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Redeemed or Called During Period, Value		$ 17	$ 45
Stock Redeemed or Called During Period, Shares \| shares		341,000	625,000