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v3.6.0.2

Consolidated Statements of Equity - USD ($) $ in Millions | Total | Preferred stock | Common stock | Additional paid-in capital | Accumulated other comprehensive income (loss) | Retained earnings | Treasury stock | Noncontrolling interests | Parent
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2013 | $ (8,620.8) | $ 0.0 | $ (0.1) | $ (4,023.6) | $ 27.7 | $ (6,349.1) | $ (1,724.9) |  |
Beginning Balance at Dec. 31, 2013 | 8,620.2 |  |  |  |  |  |  |  |
Beginning Balance at Dec. 31, 2013 |  |  |  |  |  |  |  | $ 0.6 |
Beginning Balance, shares at Dec. 31, 2013 |  | 0 | (256,000,000) |  |  |  | (19,700,000) |  |
Net income attributable to Biogen Inc. | 2,934.8 |  |  |  |  | 2,934.8 |  |  |
Net (loss) income attributable to noncontrolling interests, net of tax | 6.8 |  |  |  |  |  |  | 6.8 |
Net income | 2,941.6 |  |  |  |  |  |  |  |
Other comprehensive income (loss), net of tax | (31.8) |  |  |  | (31.8) |  |  |  |
Other comprehensive income (loss), net of tax | (31.8) |  |  |  |  |  |  | 0.0 |
Distribution or Capital contribution to noncontrolling interests | (9.1) |  |  |  |  |  |  | (9.1) | $ 0.0
Noncontrolling interest, increase (decrease) other | 6.7 |  |  |  |  |  |  | 6.7 | 0.0
Repurchase of common stock, at cost | $ (886.8) |  |  |  |  |  | $ (886.8) |  |
Repurchase of common stock, at cost, shares | (2,900,000) |  |  |  |  |  | (2,900,000) |  |
Issuance of common stock under stock option and stock purchase plans | $ 54.9 |  | $ 0.0 | 54.9 |  |  |  |  |
Issuance of common stock under stock option and stock purchase plans, shares |  |  | 300,000 |  |  |  |  |  |
Issuance of common stock under stock award plan | (140.3) |  | $ 0.0 | (140.3) |  |  |  |  |
Issuance of common stock under stock award plan |  |  | 800,000 |  |  |  |  |  |
Compensation expense related to share-based payments | 165.0 |  |  | 165.0 |  |  |  |  |
Tax benefit from share-based payments | (93.0) |  |  | (93.0) |  |  |  |  |
Ending Balance at Dec. 31, 2014 | (10,814.0) | $ 0.0 | $ (0.1) | (4,196.2) | (59.5) | (9,283.9) | $ (2,611.7) |  |
Ending Balance at Dec. 31, 2014 | 10,809.0 |  |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2014 |  |  |  |  |  |  |  | 5.0 |
Ending Balance, shares at Dec. 31, 2014 |  | 0 | (257,100,000) |  |  |  | (22,600,000) |  |
Net income attributable to Biogen Inc. | 3,547.0 |  |  |  |  | 3,547.0 |  |  |
Net (loss) income attributable to noncontrolling interests, net of tax | 46.2 |  |  |  |  |  |  | 46.2 |
Net income | 3,593.2 |  |  |  |  |  |  |  |
Other comprehensive income (loss), net of tax | (164.5) |  |  |  | (164.5) |  |  |  |
Other comprehensive income (loss), net of tax | 164.5 |  |  |  |  |  |  | 0.0 |
Acquisition of noncontrolling interests | (10.9) |  |  |  |  |  |  | (10.9) | 0.0
Distribution or Capital contribution to noncontrolling interests | (60.0) |  |  |  |  |  |  | 60.0 | 0.0
Repurchase of common stock, at cost | $ (5,000.0) |  |  |  |  |  | $ (5,000.0) |  |
Repurchase of common stock, at cost, shares | (16,800,000) |  |  |  |  |  | (16,800,000) |  |
Retirement of common stock pursuant to the 2016 Share Repurchase Program, at cost | $ 0.0 |  | $ 0.0 | (4,377.5) |  | (622.5) | $ (5,000.0) |  |
Retirement of common stock pursuant to the 2015 Share Repurchase Program, at cost, shares |  |  | (16,800,000) |  |  |  | (16,800,000) |  |
Issuance of common stock under stock option and stock purchase plans | 54.2 |  | $ 0.0 | 54.2 |  |  |  |  |
Issuance of common stock under stock option and stock purchase plans, shares |  |  | 300,000 |  |  |  |  |  |
Issuance of common stock under stock award plan | (125.1) |  | $ 0.0 | (125.1) |  |  |  |  |
Issuance of common stock under stock award plan |  |  | 600,000 |  |  |  |  |  |
Compensation expense related to share-based payments | 183.2 |  |  | 183.2 |  |  |  |  |
Tax benefit from share-based payments | (69.0) |  |  | (69.0) |  |  |  |  |
Ending Balance at Dec. 31, 2015 | (9,374.9) | $ 0.0 | $ (0.1) | 0.0 | (224.0) | (12,208.4) | $ (2,611.7) |  |
Ending Balance at Dec. 31, 2015 | 9,372.8 |  |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2015 | 2.1 |  |  |  |  |  |  | 2.1 |
Ending Balance, shares at Dec. 31, 2015 |  | 0 | (241,200,000) |  |  |  | (22,600,000) |  |
Net income attributable to Biogen Inc. | 3,702.8 |  |  |  |  | 3,702.8 |  |  |
Net (loss) income attributable to noncontrolling interests, net of tax | (7.1) |  |  |  |  |  |  | (7.1) |
Net income | 3,695.7 |  |  |  |  |  |  |  |
Other comprehensive income (loss), net of tax | (95.9) |  |  |  | (95.9) |  |  |  |
Other comprehensive income (loss), net of tax | (95.8) |  |  |  |  |  |  | (0.1) |
Acquisition of noncontrolling interests | (0.6) |  |  |  |  |  |  | 0.6 | 0.0
Distribution or Capital contribution to noncontrolling interests | (1.5) |  |  |  |  |  |  | 1.5 | 0.0
Deconsolidation of noncontrolling interests | (7.5) |  |  |  |  |  |  | (7.5) | $ 0.0
Repurchase of common stock, at cost | $ (1,000.0) |  |  |  |  |  | $ (1,000.0) |  |
Repurchase of common stock, at cost, shares | (3,300,000) |  |  |  |  |  | (3,300,000) |  |
Retirement of common stock pursuant to the 2016 Share Repurchase Program, at cost | $ 0.0 |  | $ 0.0 | (164.9) |  | (835.1) | $ (1,000.0) |  |
Retirement of common stock pursuant to the 2015 Share Repurchase Program, at cost, shares |  |  | (3,300,000) |  |  |  | (3,300,000) |  |
Issuance of common stock under stock option and stock purchase plans | 43.7 |  | $ 0.0 | 43.7 |  | 0.0 |  |  |
Issuance of common stock under stock option and stock purchase plans, shares |  |  | 200,000 |  |  |  |  |  |
Issuance of common stock under stock award plan | $ (52.1) |  | $ 0.0 | (47.6) |  | (4.5) |  |  |
Issuance of common stock under stock award plan | 41,000 |  | 400,000 |  |  |  |  |  |
Compensation expense related to share-based payments | $ 169.4 |  |  | 169.4 |  |  |  |  |
Tax benefit from share-based payments | (0.6) |  |  | 0.6 |  |  |  |  |
Ending Balance at Dec. 31, 2016 | (12,128.6) | $ 0.0 | $ (0.1) | $ 0.0 | $ (319.9) | $ (15,071.6) | $ (2,611.7) |  |
Ending Balance at Dec. 31, 2016 | 12,140.1 |  |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2016 | $ (11.5) |  |  |  |  |  |  | $ (11.5) |
Ending Balance, shares at Dec. 31, 2016 |  | 0 | (238,500,000) |  |  |  | (22,600,000) |  |

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