Compute Net Operating Assets

Refer to the balance sheet information below for Home Depot.

$ millions	Feb. 3, 2019	Jan. 28, 2018
Operating assets	$40,114	$38,887
Nonoperating assets	1,689	3,415
Total assets	$41,803	$42,302
Operating liabilities	$15,845	$15,245
Nonoperating liabilities	27,742	25,677
Total liabilities	$43,587	$40,922
Net sales	$102,793
Operating expense before tax	88,039
Net operating profit before tax (NOPBT)	14,754
Other expense	925
Income before tax	13,829
Tax expense	3,263
Net income	$10,566

Compute net operating assets for the years ended February 3, 2019, and January 28, 2018.

$ millions	February 3, 2019	January 28, 2018
Net operating assets (NOA)	Answer?	Answer?