CONSOLIDATED COMPREHENSIVE INCOME STATEMENTS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net Earnings	$ 2,765	$ 3,331	[1]	$ 3,309	[1]
Other Comprehensive Income (Loss) - Net of Tax:
Pension and Other Post-Employment Benefits	21	(15)		(164)
Interest Rate Derivatives	62	0		0
Other	(6)	1		(11)
Total Other Comprehensive Income (Loss) (Note 16)	77	(14)		(175)
Total Comprehensive Earnings	$ 2,842	$ 3,317		$ 3,134

[1] Certain prior year data has been reclassified to conform to the current presentation.