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Income Taxes
3 Months Ended
Apr. 04, 2021
Income Tax Disclosure [Abstract]  
Income Taxes
8. INCOME TAXES
Our effective tax rate may vary from the U.S. federal statutory tax rate due to the change in the mix of earnings in tax jurisdictions with different statutory rates, benefits related to tax credits, and the tax impact of non-deductible expenses and other permanent differences between income before income taxes and taxable income. The effective tax rate for Q1 2021 was 13.1%. The variance from the U.S. federal statutory tax rate of 21% in Q1 2021 was primarily attributable to discrete tax benefits related to GRAIL Continuation Payments and the mix of earnings in jurisdictions with lower statutory tax rates than the U.S. federal statutory tax rate, such as in Singapore and the United Kingdom. This was partially offset by tax expense on certain foreign subsidiary earnings that are no longer indefinitely reinvested.