DEBT (Debt) (Details) - USD ($) $ in Thousands			3 Months Ended
		Apr. 10, 2020	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Debt Instrument [Line Items]
Total short-term debt			$ 0	$ 0	$ 178,500
Total long-term debt - face value			2,846,367	2,846,373	2,846,390
Unamortized discounts and debt issuance costs			(60,776)	(62,033)	(65,777)
Total long-term debt - book value			2,785,591	2,784,340	2,780,613
Less current maturities			25	25	24
Total long-term debt - reported value			2,785,566	2,784,315	2,780,589
Estimated fair value of long-term debt			2,926,140	3,073,693	2,775,511
Bank Line of Credit [Member]
Debt Instrument [Line Items]
Total short-term debt	[1]		$ 0	0	178,500
Maturity year	[1]		2021
Bank Line of Credit [Member]
Debt Instrument [Line Items]
Total long-term debt - face value	[1]		$ 0	0	0
Maturity year	[1]		2021
Notes [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 2,846,367
Notes [Member] | Floating-Rate Notes Due 2020 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value	[2]		$ 250,000	250,000	250,000
Maturity year	[2]		2020
Effective interest rate	[2]		2.13%
Notes [Member] | Floating-Rate Notes Due 2021 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value	[2]		$ 500,000	500,000	500,000
Maturity year	[2]		2021
Effective interest rate	[2]		2.51%
Notes [Member] | 8.85% notes due 2021 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 6,000	6,000	6,000
Interest rate			8.85%
Maturity year			2021
Effective interest rate			8.88%
Notes [Member] | 4.50% notes due 2025 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 400,000	400,000	400,000
Interest rate			4.50%
Maturity year			2025
Effective interest rate			4.65%
Notes [Member] | 3.90% notes due 2027 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 400,000	400,000	400,000
Interest rate			3.90%
Maturity year			2027
Effective interest rate			4.00%
Notes [Member] | 7.15% notes due 2037 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 129,239	129,239	129,239
Interest rate			7.15%
Maturity year			2037
Effective interest rate			8.05%
Notes [Member] | 4.50% notes due 2047 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 700,000	700,000	700,000
Interest rate			4.50%
Maturity year			2047
Effective interest rate			4.59%
Notes [Member] | 4.70% notes due 2048 [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 460,949	460,949	460,949
Interest rate			4.70%
Maturity year			2048
Effective interest rate			5.42%
Other Notes [Member]
Debt Instrument [Line Items]
Total long-term debt - face value			$ 179	$ 185	$ 202
Effective interest rate			6.46%
Subsequent Event [Member] | Term Loan Due April 2021 [Member]
Debt Instrument [Line Items]
Maturity year		2021
Subsequent Event [Member] | Term Loan Due April 2021 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Total short-term debt		$ 750,000

[1] Borrowings on the bank line of credit are classified as short-term if we intend to repay within twelve months and as long-term if we have the intent and ability to extend payment beyond twelve months.

[2] This debt is classified as long-term since we intend to refinance it and have the ability to do so by borrowing on our $750,000,000 delayed draw term loan that closed April 10, 2020.