overall domestic loss

(i) with respect to any qualified taxable year, the domestic loss for such taxable year to the extent such loss offsets taxable income from sources without the United States for the taxable year or for any preceding qualified taxable year by reason of a carryback, and

(ii) with respect to any other taxable year, the domestic loss for such taxable year to the extent such loss offsets taxable income from sources without the United States for any preceding qualified taxable year by reason of a carryback.