Discontinued Operations - Schedule of Discontinued Operations, Net Earnings (Details) - Discontinued operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Discontinued Operations [Line Items]
Revenues	$ 258	$ 217
Costs and expenses:
Operating	151	124
Selling, general and administrative	45	38
Total costs and expenses	196	162
Operating income	62	55
Other items, net	(3)	(1)
Earnings from discontinued operations	59	54
Provision for income taxes	(14)	(12)
Net earnings from discontinued operations, net of tax	45	42
Previous disposals, cost and expenses	4	5
Previous disposals, income tax prevision	$ 1	$ 1