Discontinued Operations (Schedule Of Operating Results Of Discontinued Operations) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating results of discontinued operations
Revenue			$ 198	$ 258
Cost of services rendered and products sold			93	110
Operating expenses	[1]	$ 1	56	58
Interest and net investment income				(1)
Income before income taxes		(1)	50	91
Provision for income taxes			12	22
Gain on sale, net of income taxes		(1)	(494)
Net earnings from discontinued operations		$ (1)	531	$ 69
ServiceMaster Brands [Member]
Operating results of discontinued operations
Professional fees and other costs incurred			$ 18

[1] Includes $18 million of professional fees and other costs incurred in connection with the strategic evaluation and ultimate sale of the ServiceMaster Brands Divestiture Group in the year ended December 31, 2020.