SEGMENT DATA Geographical Region Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Concentration Risk [Line Items]
Revenue	$ 1,861,178	$ 11,547,969	$ 10,787,800
Property, plant and equipment, net	1,101,414	1,117,932	946,593
United Kingdom
Concentration Risk [Line Items]
Revenue	194,177	838,940	793,596
Property, plant and equipment, net	91,192	77,084	71,298
Total Other Foreign Operations
Concentration Risk [Line Items]
Revenue	472,364	3,076,486	2,867,626
Property, plant and equipment, net	184,679	186,265	128,001
Total Foreign Operations [Member]
Concentration Risk [Line Items]
Revenue	666,541	3,915,426	3,661,222
Property, plant and equipment, net	275,871	263,349	199,299
Total Domestic Operations [Member]
Concentration Risk [Line Items]
Revenue	1,194,637	7,632,543	7,126,578
Property, plant and equipment, net	$ 825,543	$ 854,583	$ 747,294
Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	0.00%	0.00%	0.00%