No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Payments are made to Elan for their share of rest of world net operating profits to effect an equal sharing of collaboration operating profit. These payments include the reimbursement of our portion of third-party royalties that Elan pays on behalf of the collaboration, relating to sales outside of the U.S. These amounts are reflected in the collaboration profit sharing line in our consolidated statement of income. As sales of Tysabri outside the U.S. increase, our collaboration profit sharing expense will increase. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. In the year ended December 31, 2007 we reclassified amounts within the statements of stockholders equity, resulting in correction in the treasury stock and common stock balances. No authoritative reference available. Issuance of treasury stock under stock option and stock purchase plans. No authoritative reference available. We loan certain securities from our portfolio to other institutions. Such securities are classified as loaned securities on the accompanying consolidated balance sheet. Collateral for the loaned securities, consisting of cash or other securities is maintained at a rate of approximately 102% of the market value of each loaned security. The cash collateral is recorded as collateral received for loaned securities on the consolidated balance sheet. We have a current obligation to return the collateral which is reflected as collateral received on loaned securities on the accompanying consolidated balance sheet. Income received from lending securities is recorded in other income (expense), net. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. We loan certain securities from our portfolio to other institutions. Such securities are classified as loaned securities on the accompanying consolidated balance sheet. Collateral for the loaned securities, consisting of cash or other securities is maintained at a rate of approximately 102% of the market value of each loaned security. The cash collateral is recorded as collateral received for loaned securities on the consolidated balance sheet. We have a current obligation to return the collateral which is reflected as collateral received on loaned securities on the accompanying consolidated balance sheet. Income received from lending securities is recorded in other income (expense), net. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Litigation. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. This note represents our disclosures related to: (1) Marketable Securities, Non-Marketable Securities and Other Investments which may consist of all investments in certain debt and equity securities (and other assets); including: securities held-to-maturity, trading securities, securities available-for-sale, and non-marketable securities; and (2) any unrealized gains and losses recognized on our investments due to changes in fair value as well as amounts charged to income if a decline in fair value of our investments is deemed to be other than temporary. No authoritative reference available. In the year ended December 31, 2007 we reclassified amounts within the statements of stockholders equity, resulting in correction in the treasury stock and common stock balances. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. We loan certain securities from our portfolio to other institutions. As such securities transactions are classified as loaned securities on the accompanying consolidated cash flow. Collateral for the loaned securities, consisting of cash or other securities is maintained at a rate of approximately 102% of the market value of each loaned security. The cash collateral is recorded as collateral received for loaned securities as cash (in) flows. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Receivable from unconsolidated joint business for our share of the pretax co-promotion profits generated from our co-promotion arrangement for sales of RITUXAN. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Revenues from unconsolidated joint business consists of our share of pretax co-promotion profits in the U.S.; reimbursement of selling and development expense in the U.S.; and revenue on sales of RITUXAN outside the U.S., which consist of our share of pretax co-promotion profits in Canada. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. We loan certain securities from our portfolio to other institutions. Such securities are classified as loaned securities on the accompanying consolidated balance sheet. Collateral for the loaned securities, consisting of cash or other securities is maintained at a rate of approximately 102% of the market value of each loaned security. The cash collateral is recorded as collateral received for loaned securities on the consolidated balance sheet. We have a current obligation to return the collateral which is reflected as collateral received on loaned securities on the accompanying consolidated balance sheet. Income received from lending securities is recorded in other income (expense), net. No authoritative reference available. No authoritative reference available. No authoritative reference available. This is the liability that is maintain on the Company ledger to offset the fact we loan certain securities from our portfolio to other institutions. As such securities transaction are classified as loaned securities on the accompanying consolidated cash flow. Collateral for the loaned securities, consisting of cash or other securities is maintained at a rate of approximately 102% of the market value of each loaned security. We have a current obligation to return the collateral which is reflected as collateral received on loaned securities on the accompanying consolidated cash (out) flow. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The amount of purchased research and development assets that are acquired in a business combination have no alternative future use and are therefore written off in the period of acquisition. No authoritative reference available. No authoritative reference available. No authoritative reference available. Cash received upon the termination of interest rate swaps utilized to mange our exposures in interest rates. Interest rates are contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Proceeds from the sale of a strategic equity investment. No authoritative reference available. Increase Decrease In Due From Unconsolidated Joint Business. No authoritative reference available. No authoritative reference available. No authoritative reference available. Retirement Of Common Stock Shares. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Retirement Of Common Stock. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Issuance of treasury stock from conversion of subordinated notes payable. No authoritative reference available. No authoritative reference available. No authoritative reference available. In the year ended December 31, 2008, we reclassified amounts within the statement of shareholder's equity, resulting in an correction in Additional Paid-in Capital and Retained Earnings (Accumulated Deficit) balances in connection with the re-issuance of treasury stock at a loss. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Issuance of treasury stock under stock award plans. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Issuance of treasury stock under stock option and stock purchase plans. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Represents disclosure of our revenue recognition policies and accounting for related reserves for discounts and allowances. This item also provides analyses of the amount of, and change in, total revenue reserves related to our product sales. No authoritative reference available. No authoritative reference available. No authoritative reference available. This note represents our disclosures related to: our hedging activities and use of derivative instruments; which includes disclosure related to our use of forward currency contracts to mitigate the risk of change in exchange rates and our use of interest rates swaps to manage our exposure to changes in interest rates and each of their respective notational amounts. Disclosures may also include the effect, if any, on our consolidated financial position and results of operations related to derivatives designated as hedging instruments. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Conversion of subordinated notes to common and treasury stock. No authoritative reference available. No authoritative reference available. No authoritative reference available. Disclosure showing Gains on Dispositions, Other Income & Expenses, Property, Plant & Equipment, Other Current Assets, and Accrued Expenses & Other. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. A textual description of the key elements that define a specific acquisition or disposal. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Issuance of common stock under stock option and stock purchase plans. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Information about Shareholders Equity including Preferred Stock, Stockholders right plans, Stock repurchase programs and reclassifications. No authoritative reference available. Fair value of assets and liabilities acquired and assigned to noncontrolling interest due to the adoption of a new accounting standard for the consolidation of variable interests. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Issuance of common stock under stock option and stock purchase plans. No authoritative reference available. No authoritative reference available. No authoritative reference available. Issuance of treasury stock under stock award plans. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Issuance of treasury stock from conversion of subordinated notes payable. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available.