CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,992.2	$ 1,617.8
Marketable securities	1,152.0	1,596.5
Accounts receivable - trade, net	1,991.0	2,100.0
Accounts receivable - Sanofi	389.2	260.6
Accounts receivable - other	431.1	425.0
Inventories	1,640.9	1,415.5
Prepaid expenses and other current assets	263.8	273.7
Total current assets	7,860.2	7,689.1
Marketable securities	2,587.6	3,256.8
Property, plant, and equipment, net	3,031.4	2,890.4
Deferred tax assets	774.0	824.2
Other noncurrent assets	175.5	144.7
Total assets	14,428.7	14,805.2
Current liabilities:
Accounts payable	380.1	418.1
Accrued expenses and other current liabilities	1,257.0	1,211.4
Debt	1,500.0	0.0
Other liabilities - Sanofi	103.8	85.0
Total current liabilities	3,702.4	2,096.6
Finance lease liabilities	715.9	713.9
Other noncurrent liabilities	457.9	317.7
Total liabilities	5,371.3	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	6,263.0	4,428.6
Retained earnings	8,901.7	7,379.8
Accumulated other comprehensive income	35.5	21.1
Treasury Stock, at cost; 15,578,240 shares in 2020 and 4,860,123 shares in 2019	(6,142.9)	(739.9)
Total stockholders' equity	9,057.4	11,089.7
Total liabilities and stockholders' equity	14,428.7	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	380.2	310.5
Deferred revenue, noncurrent	37.8	27.7
Other noncurrent liabilities	390.3	482.0
Other
Current liabilities:
Deferred revenue, current	81.3	71.6
Deferred revenue, noncurrent	$ 67.0	$ 77.6