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STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Payment Arrangement, Option, Activity [Table Text Block]

The following is an analysis of options to purchase shares of class A common stock issued and outstanding:

			Options (in thousands)						Weighted-Average Exercise Price						Weighted-Average  Remaining Contractual Term (in years)						Aggregate Intrinsic Value (in millions)
Outstanding at January 1, 2020			1,498						$	100.74
Exercised			(375)						92.76
Granted			441						104.10
Forfeited / Expired			—						—
Outstanding at December 31, 2020			1,564						$	103.60					6.84						$	101
Options Vested and Expected to Vest			1,564						$	103.60					6.84						$	101
Exercisable at December 31, 2020			801						$	101.33					5.46						$	54

Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

As of December 31, 2020, we had the following outstanding Restricted Units, including reinvested dividends, granted under the MIP:

			Restricted Units (in thousands)						Weighted-Average Grant Date Fair Value						Weighted-Average  Remaining Contractual Term (in years)						Aggregate Intrinsic Value  (in millions)
Non-vested as of January 1, 2020			10,739						$	106.94
Vested			(12,195)						106.60
Granted			3,638						102.54
Reinvested Dividends			276						N/A
Forfeited / Expired			(165)						101.80
Non-vested as of December 31, 2020			2,293						$	102.91					0.26						$	386

Share-based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block]

As of December 31, 2020, we had the following Restricted Units outstanding, including reinvested dividends, that were granted under our LTIP program:

			Restricted Units (in thousands)						Weighted-Average Grant Date Fair Value						Weighted-Average  Remaining Contractual Term (in years)						Aggregate Intrinsic Value  (in millions)
Non-vested as of January 1, 2020			1,691						$	109.18
Vested			(867)						110.79
Granted			230						92.76
Reinvested Dividends			64						N/A
Forfeited / Expired			(114)						107.34
Non-vested as of December 31, 2020			1,004						$	104.15					1.22						$	169

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

The following table summarizes information about stock options outstanding and exercisable as of December 31, 2020:

			Options Outstanding																		Options Exercisable
Exercise Price Range			Options (in thousands)						Weighted-Average Remaining Contractual Term (in years)						Weighted-Average Exercise Price						Options (in thousands)						Weighted-Average Exercise Price
$65.01 - $80.00			67						0.90						$	76.02					67						$	76.02
$80.01 - $95.00			46						2.17						82.87						46						82.87
$95.01 - $110.00			1,208						7.09						104.28						587						103.87
$110.01 - $125.00			243						8.12						111.80						101						111.80
			1,564						6.84						$	103.60					801						$	101.33

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

			2020						2019						2018
Risk-free interest rate			0.15		%				2.23		%				2.61		%
Expected volatility			27.53		%				19.64		%				16.51		%
Weighted-average fair value of units granted			$	92.77					$	123.44					$	137.57
Share payout			101.00		%				115.04		%				123.47		%

The fair value of each option grant is estimated using the Black-Scholes option pricing model. The weighted-average assumptions used by year, and the calculated weighted-average fair values of options, are as follows:

			2020						2019						2018
Expected dividend yield			3.51		%				2.94		%				2.93		%
Risk-free interest rate			1.26		%				2.60		%				2.84		%
Expected life in years			7.5						7.5						7.5
Expected volatility			19.25		%				17.79		%				16.72		%
Weighted-average fair value of options granted			$	11.74					$	16.34					$	15.23

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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