Income Taxes	9 Months Ended
Nov. 03, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rate was 27.2% for the third quarter of fiscal 2019 and 37.1% for the third quarter of fiscal 2018. The effective income tax rate was 25.9% for the first nine months of fiscal 2019 and 36.9% for the first nine months of fiscal 2018. The decrease in the effective income tax rate was primarily due to the reduction of the U.S. federal corporate tax rate to 21% as a result of the 2017 Tax Act and the jurisdictional mix of income. Under ASU 2018-05, we have accounted for the impacts of the 2017 Tax Act to the extent a reasonable estimate could be made and we recognized provisional amounts related to the deemed repatriation tax, offset by the re-measurement of our deferred tax assets and liabilities to record the effects of the tax law change in the period of enactment. This guidance allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law during the measurement period. The measurement period ends when the company has obtained, prepared, and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. We will continue to monitor for new guidance related to provisional amounts recorded. TJX had net unrecognized tax benefits of $65.3 million as of November 3, 2018, $57.3 million as of February 3, 2018 and $41.2 million as of October 28, 2017. TJX is subject to U.S. federal income tax as well as income tax in multiple state, local and foreign jurisdictions. In the U.S., fiscal years through 2010 are no longer subject to examination. In Canada, fiscal years through 2008 are no longer subject to examination. In all other jurisdictions, fiscal years through 2009 are no longer subject to examination. TJX’s accounting policy classifies interest and penalties related to income tax matters as part of income tax expense. The total accrued amount on the balance sheets for interest and penalties was $13.8 million as of November 3, 2018, $11.9 million as of February 3, 2018 and $8.5 million as of October 28, 2017. Based on the outcome of tax examinations or judicial or administrative proceedings, or as a result of the expiration of statutes of limitations in specific jurisdictions, it is reasonably possible that unrecognized tax benefits for certain tax positions taken on previously filed tax returns may change materially from those presented in the financial statements. During the next 12 months, it is reasonably possible that tax examinations of prior years’ tax returns or judicial or administrative proceedings that reflect such positions taken by TJX may be finalized. As a result, the total net amount of unrecognized tax benefits may decrease, which would reduce the provision for taxes on earnings, by a range of zero to $23 million.

Income Taxes

The effective income tax rate was 27.2% for the third quarter of fiscal 2019 and 37.1% for the third quarter of fiscal 2018. The effective income tax rate was 25.9% for the first nine months of fiscal 2019 and 36.9% for the first nine months of fiscal 2018. The decrease in the effective income tax rate was primarily due to the reduction of the U.S. federal corporate tax rate to 21% as a result of the 2017 Tax Act and the jurisdictional mix of income.

Under ASU 2018-05, we have accounted for the impacts of the 2017 Tax Act to the extent a reasonable estimate could be made and we recognized provisional amounts related to the deemed repatriation tax, offset by the re-measurement of our deferred tax assets and liabilities to record the effects of the tax law change in the period of enactment. This guidance allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law during the measurement period. The measurement period ends when the company has obtained, prepared, and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. We will continue to monitor for new guidance related to provisional amounts recorded.

TJX had net unrecognized tax benefits of $65.3 million as of November 3, 2018, $57.3 million as of February 3, 2018 and $41.2 million as of October 28, 2017.

TJX is subject to U.S. federal income tax as well as income tax in multiple state, local and foreign jurisdictions. In the U.S., fiscal years through 2010 are no longer subject to examination. In Canada, fiscal years through 2008 are no longer subject to examination. In all other jurisdictions, fiscal years through 2009 are no longer subject to examination.

TJX’s accounting policy classifies interest and penalties related to income tax matters as part of income tax expense. The total accrued amount on the balance sheets for interest and penalties was $13.8 million as of November 3, 2018, $11.9 million as of February 3, 2018 and $8.5 million as of October 28, 2017.

Based on the outcome of tax examinations or judicial or administrative proceedings, or as a result of the expiration of statutes of limitations in specific jurisdictions, it is reasonably possible that unrecognized tax benefits for certain tax positions taken on previously filed tax returns may change materially from those presented in the financial statements. During the next 12 months, it is reasonably possible that tax examinations of prior years’ tax returns or judicial or administrative proceedings that reflect such positions taken by TJX may be finalized. As a result, the total net amount of unrecognized tax benefits may decrease, which would reduce the provision for taxes on earnings, by a range of zero to $23 million.