statement information for Home Depot follows. $ millions Jan. 31, 2016 Feb. 01, 2015 Operating assets $40,583 $38,473 Nonoperating assets 2,241 1,748 Total assets 42,824 40,221 Operating liabilities 15,018 13,527 Nonoperating liabilities 21,285 17, 167 Support Total liabilities 36,303 30,694 Total stockholders' equity 6,521 9,527 Sales 88,999 Net operating profit before tax (NOPBT) 12,024 Nonoperting expense before tax 778 Tax expense 4,088 Net income 7,158