ACCOUNTING POLICIES - GENERAL (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2020		Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2019
Defined Benefit Plan Disclosure
Nontrade Receivables	$ 136,700		$ 136,700		$ 81,600
Accounts Receivable, Allowance for Credit Loss, Current	23,900		23,900		25,400
Accounts Receivable, Credit Loss Expense (Reversal)			10,100		7,000	$ 10,900
Inventory Valuation Reserves	28,700		28,700		30,700
Inventory Write-down			15,700		10,000	$ 9,700
Intangible Assets, Net (Including Goodwill)	4,000,000		4,000,000		1,900,000
Self Insurance Reserve	27,900		27,900		12,900
Operating Lease, Right-of-Use Asset	534,705	[1]	534,705	[1]	235,834		$ 240,000
Operating Lease, Liability	543,211	[1]	543,211	[1]	$ 241,876		$ 245,000
Cost of Goods Sold
Defined Benefit Plan Disclosure
Quantifying Misstatement in Current Year Financial Statements, Amount	23,300		18,900
Net Income
Defined Benefit Plan Disclosure
Quantifying Misstatement in Current Year Financial Statements, Amount	$ 16,700		14,400
Inventories
Defined Benefit Plan Disclosure
Quantifying Misstatement in Current Year Financial Statements, Amount			60,300
Goodwill
Defined Benefit Plan Disclosure
Quantifying Misstatement in Current Year Financial Statements, Amount			33,900
Deferred Income Tax Liability
Defined Benefit Plan Disclosure
Quantifying Misstatement in Current Year Financial Statements, Amount			$ 12,000
Minimum
Defined Benefit Plan Disclosure
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			2 years
Maximum
Defined Benefit Plan Disclosure
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			20 years

[1] Operating lease assets and liabilities of $1.9 million and $2.1 million, respectively, are classified as held for sale as of December 31, 2020, as disclosed in Note 7, "Assets and Liabilities Held for Sale".