INCOME TAXES	9 Months Ended
INCOME TAXES	Sep. 30, 2020
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company's effective income tax rates were 10.7% and 8.9% for the three months ended September 30, 2020 and 2019, respectively, and 8.3% and 9.9% for the nine months ended September 30, 2020 and 2019, respectively. The fluctuation in the effective rates between the nine months ended September 30, 2020 and 2019 is primarily due to the impact of the Settlement Agreement with Abbott (see Notes 3 and 9). The effective rates for the nine months ended September 30, 2020 and 2019 were also lower than the federal statutory rate of 21% primarily due to (1) the tax benefit from employee share-based compensation, (2) foreign earnings taxed at lower rates, and (3) Federal and California research and development credits. The effective rates include a tax benefit from employee share-based compensation of $16.4 million and $19.6 million for the three months ended September 30, 2020 and 2019, respectively, and $47.0 million and $56.2 million for the nine months ended September 30, 2020 and 2019, respectively. The Company strives to resolve open matters with each tax authority at the examination level and could reach agreement with a tax authority at any time. While the Company has accrued for matters it believes are more likely than not to require settlement, the final outcome with a tax authority may result in a tax liability that is more or less than that reflected in the consolidated condensed financial statements. Furthermore, the Company may later decide to challenge any assessments, if made, and may exercise its right to appeal. The uncertain tax positions are reviewed quarterly and adjusted as events occur that affect potential liabilities for additional taxes, such as lapsing of applicable statutes of limitations, proposed assessments by tax authorities, negotiations between tax authorities, identification of new issues, and issuance of new legislation, regulations, or case law. As of September 30, 2020 and December 31, 2019, the gross liability for income taxes associated with uncertain tax positions was $250.5 million and $203.1 million, respectively. The Company estimates that these liabilities would be reduced by $76.6 million and $50.1 million, respectively, from offsetting tax benefits associated with the correlative effects of potential transfer pricing adjustments, state income taxes, and timing adjustments. The net amounts of $173.9 million and $153.0 million, respectively, if not required, would favorably affect the Company's effective tax rate. The Internal Revenue Service began its examination of the 2015 and 2016 tax years during the fourth quarter of 2018 and its examination of the 2017 tax year during the first quarter of 2019. As of September 30, 2020, all material state, local, and foreign income tax matters have been concluded for years through 2010. During 2018, the Company executed an Advance Pricing Agreement ("APA") between the United States and Switzerland governments for tax years 2009 through 2020 covering various transfer pricing matters. Certain intercompany transactions covering tax years 2015 through 2020 were not resolved and those related tax positions remain uncertain. These transfer pricing matters may be significant to the Company's consolidated condensed financial statements. Based upon the information currently available and numerous possible outcomes, the Company cannot reasonably estimate what, if any, changes in its existing uncertain tax positions may occur in the next 12 months and, therefore, has recorded the gross uncertain tax positions as a long-term liability. In addition, the Company executed other APAs as follows: during 2017, an APA between the United States and Japan covering tax years 2015 through 2019; and during 2018, APAs between Japan and Singapore and between Switzerland and Japan covering tax years 2015 through 2019. The Company has filed or intends to file to renew these APAs for the years 2020 and forward. The execution of some or all of these APAs depends on a number of variables outside of the Company's control.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.