Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 1,224.6	$ 1,573.8
Marketable securities	2,313.4	2,115.2
Accounts receivable, net	1,958.5	1,787.0
Due from anti-CD20 therapeutic programs	526.9	532.6
Inventory	929.9	902.7
Other current assets	687.6	962.0
Total current assets	7,640.9	7,873.3
Marketable securities	1,375.9	3,057.3
Property, plant and equipment, net	3,601.2	3,182.4
Intangible assets, net	3,120.0	3,879.6
Goodwill	5,706.4	4,632.5
Deferred tax asset	2,153.9	595.9
Investments and other assets	1,690.6	431.6
Total assets	25,288.9	23,652.6
Current liabilities:
Current portion of notes payable	0.0	3.2
Taxes payable	63.5	68.2
Accounts payable	370.5	395.5
Accrued expenses and other	2,861.2	2,901.3
Total current liabilities	3,295.2	3,368.2
Notes payable	5,936.5	5,935.0
Deferred tax liability	1,636.2	122.6
Other long-term liabilities	1,389.4	1,628.7
Total liabilities	12,257.3	11,054.5
Commitments and contingencies
Biogen Idec Inc. shareholders' equity
Preferred stock, par value $0.001 per share	0.0	0.0
Common stock, par value $0.0005 per share	0.1	0.1
Additional paid-in capital	0.0	97.8
Accumulated other comprehensive loss	(240.4)	(318.4)
Retained earnings	16,257.0	15,810.4
Treasury stock, at cost; 23.8 million and 23.8 million shares, respectively	(2,977.1)	(2,977.1)
Total Biogen Inc. shareholders’ equity	13,039.6	12,612.8
Noncontrolling interests	(8.0)	(14.7)
Total equity	13,031.6	12,598.1
Total liabilities and equity	$ 25,288.9	$ 23,652.6