STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2018

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

Share-based Compensation, Stock Options, Activity [Table Text Block]

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

	Shares (in thousands)		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in millions)
Outstanding at January 1, 2018	1,291		$	91.58
Exercised	(178	)	84.79
Granted	279		106.38
Forfeited / Expired	(8	)	104.87
Outstanding at December 31, 2018	1,384		$	95.36	6.28	$	9
Options Vested and Expected to Vest	1,384		$	95.36	6.28	$	9
Exercisable at December 31, 2018	857		$	89.36	5.05	$	9

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

As of December 31, 2018, we had the following Restricted Units outstanding, including reinvested dividends, that were granted under our Management Incentive Award program and the Coyote Restricted Stock Award:

	Shares (in thousands)		Weighted-Average Grant Date Fair Value		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in millions)
Nonvested at January 1, 2018	10,471		$	99.16
Vested	(5,197	)	97.33
Granted	4,734		110.95
Reinvested Dividends	352		N/A
Forfeited / Expired	(221	)	104.74
Nonvested at December 31, 2018	10,139		$	104.47	1.41	$	989
Restricted Units Expected to Vest	10,029		$	104.52	1.40	$	978

Share-based Compensation, Performance Shares Award Outstanding Activity [Table Text Block]

As of December 31, 2018, we had the following Restricted Units outstanding, including reinvested dividends, that were granted under our Long-Term Incentive Performance Award program:

	Shares (in thousands)		Weighted-Average Grant Date Fair Value		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in millions)
Nonvested at January 1, 2018	1,787		$	105.58
Vested	(912	)	105.60
Granted	957		111.42
Reinvested Dividends	79		N/A
Forfeited / Expired	(210	)	107.98
Nonvested at December 31, 2018	1,701		$	108.63	1.49	$	166
Restricted Units Expected to Vest	1,631		$	108.64	1.50	$	159

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following table summarizes information about stock options outstanding and exercisable at December 31, 2018:

	Options Outstanding				Options Exercisable
Exercise Price Range	Shares (in thousands)	Weighted-Average Remaining Contractual Term (in years)	Weighted-Average Exercise Price		Shares (in thousands)	Weighted-Average Exercise Price
$55.01 - $70.00	116	0.88	$	61.94	116	$	61.94
$70.01 - $80.00	168	2.81	75.79		168	75.79
$80.01 - $90.00	104	4.17	82.89		104	82.89
$90.01 - $110.00	996	7.72	103.88		469	102.49
	1,384	6.28	$	95.36	857	$	89.36

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

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:

	2018			2017			2016
Expected dividend yield	2.93		%	2.89		%	2.95		%
Risk-free interest rate	2.84		%	2.15		%	1.62		%
Expected life in years	7.5			7.5			7.5
Expected volatility	16.72		%	17.81		%	22.40		%
Weighted-average fair value of options granted	$	15.23		$	14.70		$	16.46

	2018			2017			2016
Risk-free interest rate	2.61		%	1.46		%	1.00		%
Expected volatility	16.51		%	16.59		%	16.46		%
Weighted-average fair value of units granted	$	137.57		$	119.29		$	136.18
Share payout	123.47		%	113.55		%	129.08		%