CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,573.0	$ 1,617.8
Marketable securities	1,452.9	1,596.5
Accounts receivable - trade, net	3,092.5	2,100.0
Accounts receivable - Sanofi	460.8	260.6
Accounts receivable - other	486.2	425.0
Inventories	1,801.6	1,415.5
Prepaid expenses and other current assets	230.6	273.7
Total current assets	9,097.6	7,689.1
Marketable securities	2,875.1	3,256.8
Property, plant, and equipment, net	3,138.3	2,890.4
Deferred tax assets	804.2	824.2
Other noncurrent assets	168.8	144.7
Total assets	16,084.0	14,805.2
Current liabilities:
Accounts payable	443.1	418.1
Accrued expenses and other current liabilities	1,303.0	1,211.4
Other liabilities - Sanofi	96.9	85.0
Total current liabilities	2,337.8	2,096.6
Long-term debt	1,978.3	0.0
Finance lease liabilities	716.5	713.9
Other noncurrent liabilities	454.0	317.7
Total liabilities	5,958.5	3,715.5
Stockholders' equity:
Preferred Stock, $.01 par value; 30,000,000 shares authorized; issued and outstanding - none	0.0	0.0
Additional paid-in capital	6,592.8	4,428.6
Retained earnings	9,743.8	7,379.8
Accumulated other comprehensive income	30.8	21.1
Treasury Stock, at cost; 15,741,824 shares in 2020 and 4,860,123 shares in 2019	(6,242.0)	(739.9)
Total stockholders' equity	10,125.5	11,089.7
Total liabilities and stockholders' equity	16,084.0	14,805.2
Class A Stock
Stockholders' equity:
Common stock	0.0	0.0
Total stockholders' equity	0.0	0.0
Common Stock
Stockholders' equity:
Common stock	0.1	0.1
Total stockholders' equity	0.1	0.1
Sanofi
Current liabilities:
Deferred revenue, current	409.3	310.5
Deferred revenue, noncurrent	37.9	27.7
Other noncurrent liabilities	367.0	482.0
Other
Current liabilities:
Deferred revenue, current	85.5	71.6
Deferred revenue, noncurrent	$ 67.0	$ 77.6