Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2020		Dec. 31, 2019	[1]
Current assets:
Cash and equivalents	$ 2,824		$ 902
Accounts receivable	3,161		3,544
Unbilled receivables	8,024		7,857
Inventories	5,745		6,306
Other current assets	1,789		1,679
Total current assets	21,543		20,288
Noncurrent assets:
Property, plant and equipment, net	5,100		4,475
Intangible assets, net	2,117		2,315
Goodwill	20,053	[2]	19,677	[3]
Other assets	2,495		2,594
Total noncurrent assets	29,765		29,061
Total assets	51,308		49,349
Current liabilities:
Short-term debt and current portion of long-term debt	3,003		2,920
Accounts payable	2,952		3,162
Customer advances and deposits	6,276		7,148
Other current liabilities	3,733		3,571
Total current liabilities	15,964		16,801
Noncurrent liabilities:
Long-term debt	9,995		9,010
Other liabilities	9,688		9,560
Commitments and contingencies (see Note O)
Total noncurrent liabilities	19,683		18,570
Shareholders’ equity:
Common stock	482		482
Surplus	3,124		3,039
Retained earnings	33,498		31,633
Treasury stock	(17,893)		(17,358)
Accumulated other comprehensive loss	(3,550)		(3,818)
Total shareholders’ equity	15,661		13,978	[4]
Total liabilities and shareholders’ equity	$ 51,308		$ 49,349

[1] *Prior-period information has been restated for the retrospective application of a change in accounting principle related to the amortization of actuarial gains and losses for our qualified U.S. government pension plans, which we adopted in the fourth quarter of 2020. For further discussion of this change in accounting principle, see Note T to the Consolidated Financial Statements.

[2] Goodwill in the Technologies reporting unit is net of $1.8 billion of accumulated impairment losses.

[3] Goodwill in the Information Technology and Mission Systems reporting units is net of $536 and $1.3 billion of accumulated impairment losses, respectively.

[4] Prior-period information has been restated for the retrospective application of a change in accounting principle related to the amortization of actuarial gains and losses for our qualified U.S. government pension plans, which we adopted in the fourth quarter of 2020. For further discussion of this change in accounting principle, see Note T to the Consolidated Financial Statements.