Create Cause of Change analysis in excel for the company Northrop Grumman. Use the company's Consolidated Statements of Earnings and Comprehensive Income below. Please include the steps of the process. 

Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues	$ 36,602	$ 35,667	$ 36,799
Operating income	3,601	5,651	4,065
Operating costs and expenses
General and administrative expenses	3,873	3,597	3,413
Total operating costs and expenses	33,001	31,996	32,734
Gain on sale of business	0	1,980	0
Operating income	3,601	5,651	4,065
Other (expense) income
Interest expense	(506)	(556)	(593)
Non-operating FAS pension benefit	1,505	1,469	1,198
Mark-to-market pension and OPB benefit (expense)	1,232	2,355	(1,034)
Other, net	4	19	92
Earnings before income taxes	5,836	8,938	3,728
Federal and foreign income tax expense	940	1,933	539
Net earnings	$ 4,896	$ 7,005	$ 3,189
Basic earnings per share
Basic earnings per share	$ 31.61	$ 43.70	$ 19.08
Weighted-average common shares outstanding, in millions	154.9	160.3	167.1
Diluted earnings per share
Diluted earnings per share	$ 31.47	$ 43.54	$ 19.03
Weighted-average diluted shares outstanding, in millions	155.6	160.9	167.6
Net earnings (from above)	$ 4,896	$ 7,005	$ 3,189
Other comprehensive loss, net of tax
Change in unamortized prior service credit	(1)	(8)	(41)
Change in cumulative translation adjustment and other, net	(9)	(7)	10
Other comprehensive loss, net of tax	(10)	(15)	(31)
Comprehensive income	4,886	6,990	3,158
Product [Member]
Cost of Goods and Services Sold	22,761	22,309	21,559
Revenues	28,522	27,868	27,015
Service [Member]
Cost of Goods and Services Sold	6,367	6,090	7,762
Revenues	$ 8,080	$ 7,799	$ 9,784