5. Supplemental Cash Flow Information - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Supplemental Cash Flow Elements [Abstract]
Net Income Attributable to Parent	$ 1,652,341	$ 1,464,005
Share-based Compensation	18,500	16,300
(Gain) Loss on Sale of Securities, Net	(600)	0
Other than Temporary Impairment Losses on Investments	4,600	1,600
Changes in fair market value of equity securities	(2,011,200)	(1,775,600)
Loss on Disposition of Property Plant Equipment	0	200
Changes in fair value of contingent consideration	(1,100)	(600)
Decrease in accounts receivable	24,700	14,600
Increase in inventories	(79,800)	(8,000)
(Increase) decrease in other current assets	(18,600)	37,600
Increase (decrease) in accounts payable and other current liabilities	29,700	(23,000)
Increase in income taxes payable	27,800	8,600
Increase in deferred income taxes	437,400	395,800
Increase in other long term liabilities	15,500	4,400
Gain on Disposition of a division	(11,700)	0
Operating Lease, Right-of-Use Asset, Amortization Expense	18,700	19,800
Other Depreciation and Amortization	68,300	66,100
Other	(1,300)	(5,100)
Payments of operating lease liabilities	(18,300)	(18,400)
Net cash provided by operating activities	154,930	198,345
Noncash or Part Noncash Acquisition, Investments Acquired	100	1,800
Noncash or Part Noncash Acquisition, Fixed Assets Acquired	$ 5,800	$ 6,200