CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 1,045.5	$ 1,467.7
Marketable securities	1,624.2	1,342.2
Accounts receivable - trade, net	1,920.2	1,723.7
Accounts receivable from Sanofi	252.0	226.4
Accounts receivable from Bayer	283.7	293.1
Inventories	1,317.2	1,151.2
Prepaid expenses and other current assets	208.2	243.3
Total current assets	6,651.0	6,447.6
Marketable securities	2,884.6	1,755.0
Property, plant, and equipment, net	2,676.6	2,575.8
Deferred tax assets	821.6	828.7
Other noncurrent assets	139.8	127.4
Total assets	13,173.6	11,734.5
Current liabilities:
Accounts payable	244.0	218.2
Accrued expenses and other current liabilities	876.7	772.1
Total current liabilities	1,713.1	1,442.8
Finance lease liabilities	711.3
Finance lease liabilities		708.5
Other noncurrent liabilities	267.9	361.7
Total liabilities	3,417.7	2,977.2
Stockholders' equity:
Preferred Stock, $.01 par value; 30,000,000 shares authorized; issued and outstanding - none	0.0	0.0
Additional paid-in capital	4,263.6	3,911.6
Retained earnings	5,918.2	5,254.3
Accumulated other comprehensive income (loss)	15.8	(12.3)
Treasury Stock, at cost; 4,018,269 shares in 2019 and 3,990,021 shares in 2018	(441.8)	(396.4)
Total stockholders' equity	9,755.9	8,757.3
Total liabilities and stockholders' equity	13,173.6	11,734.5
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	424.3	246.7
Deferred revenue, noncurrent	544.2	279.3
Other
Current liabilities:
Deferred revenue, current	168.1	205.8
Deferred revenue, noncurrent	$ 181.2	$ 184.9