Income Taxes	3 Months Ended
Mar. 31, 2018
Notes To Financial Statements [Abstract]
Income Taxes	INCOME TAXES The Company recognized income tax expense of $81.7 million for the three months ended March 31, 2018, resulting in an effective tax rate of 32.4%. The income tax expense in the first quarter of 2018 includes a provisional charge of $23.1 million adjusting the provisional amounts recorded in the fourth quarter of 2017 associated with the recently enacted U.S. tax legislation. The changes to the provisional amounts resulting from the Act increased the effective tax rate by 9.1%. Excluding the impact of the tax and acquisition-related charges, the effective tax rate was 23.0% in the first quarter of 2018. This effective tax rate differs from the U.S. statutory tax rate primarily due to the effect of taxes on foreign earnings and the settlement of certain income tax audits. The Company recognized income tax expense of $79.7 million for the three months ended April 1, 2017, resulting in an effective tax rate of 16.8%. The effective tax rate differed from the U.S. statutory tax rate during this period primarily due to a portion of the Company’s earnings being realized in lower-taxed foreign jurisdictions and the utilization of U.S. tax attributes due to the divestiture of the mechanical security businesses. Non-deductible transaction costs and other acquisition-related restructuring items partially offset the net tax benefits mentioned above for the three months ended April 1, 2017. Excluding the tax impact of the divestitures and acquisition-related charges in the first quarter of 2017, the effective tax rate was 25.0%. The Company is subject to examinations by taxing authorities in U.S. federal, state, and foreign jurisdictions. The Company considers many factors when evaluating and estimating its tax positions and the impact on income tax expense, which may require periodic adjustments and which may not accurately anticipate actual outcomes. It is reasonably possible that the amount of the unrecognized benefit with respect to certain of the Company's unrecognized tax positions will significantly increase or decrease within the next 12 months. However, based on the uncertainties associated with litigation and the status of examinations, including the protocols of finalizing audits by the relevant tax authorities which could include formal legal proceedings, it is not possible to reasonably estimate the impact of any such change. On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act. The Act makes broad and complex changes to the U.S. tax code, including a new tax law that may subject the Company to a tax on global intangible low-taxed income (“GILTI”) beginning in 2018. GILTI is a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. Companies subject to GILTI have the option to account for the GILTI tax as a period cost if and when incurred, or to recognize deferred taxes for temporary differences including outside basis differences expected to reverse as GILTI. The Company has elected to account for GILTI as a period cost, and therefore has included GILTI expense in the effective tax rate calculation. As of March 31, 2018, the Company has not completed its accounting for the tax effects of the enactment of the Act; however, in certain cases (described below) the Company has made a reasonable estimate of the effects on its existing deferred tax balances and the one-time transition tax. In other cases, the Company has not been able to make a reasonable estimate and continues to account for those items based on its existing accounting under ASC 740, Income Taxes, and the provisions of the tax laws that were in effect immediately prior to enactment. During the first quarter of 2018, the Company recorded a provisional charge of $23.1 million as an adjustment to the provisional amounts recorded at December 30, 2017 related to the re-measurement of deferred tax assets and liabilities, and liabilities for unrecognized tax benefits. The provisional charges were included as a component of income taxes on the Consolidated Statements of Operations and Comprehensive Income. The Company operates in many countries throughout the world through numerous subsidiaries. In order to complete the accounting associated with the Act, the Company will continue to accumulate the relevant data, refine computational elements, monitor and analyze U.S. federal and state guidance if and when issued, and adjust its provisional estimates accordingly within the measurement period prescribed by SAB 118. Any adjustments could be material to income tax expense. Provisional amounts Deferred tax assets and liabilities: The Company remeasured certain deferred tax assets and liabilities based on the U.S. tax rates at which they are expected to become realized in the future. The provisional amount recorded in 2017 related to the re-measurement of its deferred tax balance resulted in a decrease to tax expense of approximately $252.5 million as of December 30, 2017. Upon further analysis of certain aspects of the Act and refinement of the calculations during the three months ended March 31, 2018, the Company adjusted the provisional amount by $17.4 million as an increase to tax expense, which is included as a component of income taxes on the Consolidated Statements of Operations and Comprehensive Income. The Company is still analyzing certain aspects of the Act and refining its estimate, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. International provision tax effects: As of December 30, 2017, the Company recorded a provisional amount for the one-time transition tax on undistributed foreign earnings, resulting in an increase to income tax expense of $276.1 million comprised of an accrued provisional income tax payable of approximately $460.7 million, partially offset by the reversal of the deferred tax liability of approximately $184.6 million associated with certain legacy Black & Decker unremitted foreign earnings and profits which were previously designated as not being indefinitely reinvested. The remaining deferred tax liability on unremitted foreign earnings of $4.9 million represents withholding taxes which will become payable upon distribution. The Company is still analyzing certain aspects of the Act and refining its estimate, which may be adjusted, possibly materially, due to changes in interpretations and assumptions the Company has made, guidance that may be issued and actions the Company may take as a result of the Act.

INCOME TAXES

The Company recognized income tax expense of $81.7 million for the three months ended March 31, 2018, resulting in an effective tax rate of 32.4%. The income tax expense in the first quarter of 2018 includes a provisional charge of $23.1 million adjusting the provisional amounts recorded in the fourth quarter of 2017 associated with the recently enacted U.S. tax legislation. The changes to the provisional amounts resulting from the Act increased the effective tax rate by 9.1%. Excluding the impact of the tax and acquisition-related charges, the effective tax rate was 23.0% in the first quarter of 2018. This effective tax rate differs from the U.S. statutory tax rate primarily due to the effect of taxes on foreign earnings and the settlement of certain income tax audits.

The Company recognized income tax expense of $79.7 million for the three months ended April 1, 2017, resulting in an effective tax rate of 16.8%. The effective tax rate differed from the U.S. statutory tax rate during this period primarily due to a portion of the Company’s earnings being realized in lower-taxed foreign jurisdictions and the utilization of U.S. tax attributes due to the divestiture of the mechanical security businesses. Non-deductible transaction costs and other acquisition-related restructuring items partially offset the net tax benefits mentioned above for the three months ended April 1, 2017. Excluding the tax impact of the divestitures and acquisition-related charges in the first quarter of 2017, the effective tax rate was 25.0%.

The Company is subject to examinations by taxing authorities in U.S. federal, state, and foreign jurisdictions. The Company considers many factors when evaluating and estimating its tax positions and the impact on income tax expense, which may require periodic adjustments and which may not accurately anticipate actual outcomes. It is reasonably possible that the amount of the unrecognized benefit with respect to certain of the Company's unrecognized tax positions will significantly increase or decrease within the next 12 months. However, based on the uncertainties associated with litigation and the status of examinations, including the protocols of finalizing audits by the relevant tax authorities which could include formal legal proceedings, it is not possible to reasonably estimate the impact of any such change.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act. The Act makes broad and complex changes to the U.S. tax code, including a new tax law that may subject the Company to a tax on global intangible low-taxed income (“GILTI”) beginning in 2018. GILTI is a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. Companies subject to GILTI have the option to account for the GILTI tax as a period cost if and when incurred, or to recognize deferred taxes for temporary differences including outside basis differences expected to reverse as GILTI. The Company has elected to account for GILTI as a period cost, and therefore has included GILTI expense in the effective tax rate calculation.

As of March 31, 2018, the Company has not completed its accounting for the tax effects of the enactment of the Act; however, in certain cases (described below) the Company has made a reasonable estimate of the effects on its existing deferred tax balances and the one-time transition tax. In other cases, the Company has not been able to make a reasonable estimate and continues to account for those items based on its existing accounting under ASC 740, Income Taxes, and the provisions of the tax laws that were in effect immediately prior to enactment.

During the first quarter of 2018, the Company recorded a provisional charge of $23.1 million as an adjustment to the provisional amounts recorded at December 30, 2017 related to the re-measurement of deferred tax assets and liabilities, and liabilities for unrecognized tax benefits. The provisional charges were included as a component of income taxes on the Consolidated Statements of Operations and Comprehensive Income.

The Company operates in many countries throughout the world through numerous subsidiaries. In order to complete the accounting associated with the Act, the Company will continue to accumulate the relevant data, refine computational elements, monitor and analyze U.S. federal and state guidance if and when issued, and adjust its provisional estimates accordingly within the measurement period prescribed by SAB 118. Any adjustments could be material to income tax expense.

Provisional amounts

Deferred tax assets and liabilities: The Company remeasured certain deferred tax assets and liabilities based on the U.S. tax rates at which they are expected to become realized in the future. The provisional amount recorded in 2017 related to the re-measurement of its deferred tax balance resulted in a decrease to tax expense of approximately $252.5 million as of December 30, 2017. Upon further analysis of certain aspects of the Act and refinement of the calculations during the three months ended March 31, 2018, the Company adjusted the provisional amount by $17.4 million as an increase to tax expense, which is included as a component of income taxes on the Consolidated Statements of Operations and Comprehensive Income. The Company is still analyzing certain aspects of the Act and refining its estimate, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts.

International provision tax effects: As of December 30, 2017, the Company recorded a provisional amount for the one-time transition tax on undistributed foreign earnings, resulting in an increase to income tax expense of $276.1 million comprised of an accrued provisional income tax payable of approximately $460.7 million, partially offset by the reversal of the deferred tax liability of approximately $184.6 million associated with certain legacy Black & Decker unremitted foreign earnings and profits which were previously designated as not being indefinitely reinvested. The remaining deferred tax liability on unremitted foreign earnings of $4.9 million represents withholding taxes which will become payable upon distribution. The Company is still analyzing certain aspects of the Act and refining its estimate, which may be adjusted, possibly materially, due to changes in interpretations and assumptions the Company has made, guidance that may be issued and actions the Company may take as a result of the Act.