Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 2,084.8	$ 1,308.0
Marketable securities	2,231.2	2,120.5
Accounts receivable, net	1,467.8	1,227.0
Due from anti-CD20 therapeutic programs	305.2	314.5
Inventory	1,009.7	893.4
Other current assets	993.1	836.9
Total current assets	8,091.8	6,700.3
Marketable securities	3,096.9	2,760.4
Property, plant and equipment, net	2,387.0	2,187.6
Intangible assets, net	3,869.9	4,085.1
Goodwill	3,419.7	2,663.8
Investments and other assets	1,239.6	1,107.6
Total assets	22,104.9	19,504.8
Current liabilities:
Current portion of notes payable and other financing arrangements	4.9	4.8
Taxes payable	208.8	208.7
Accounts payable	274.0	267.4
Accrued expenses and other	2,012.0	2,096.8
Total current liabilities	2,499.7	2,577.7
Notes payable and other financing arrangements	6,529.6	6,521.5
Long-term deferred tax liability	98.7	124.9
Other long-term liabilities	862.1	905.8
Total liabilities	9,990.1	10,129.9
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	0.0
Accumulated other comprehensive loss	(300.9)	(224.0)
Retained earnings	15,030.0	12,208.4
Treasury stock, at cost	(2,611.7)	(2,611.7)
Total Biogen Inc. shareholders’ equity	12,117.5	9,372.8
Noncontrolling interests	(2.7)	2.1
Total equity	12,114.8	9,374.9
Total liabilities and equity	$ 22,104.9	$ 19,504.8