Investments (Schedule Of Investments) (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2022		Jun. 30, 2021	Jun. 30, 2022		Jun. 30, 2021	Dec. 31, 2021
Investments [Abstract]
Equity Method Investments	[1]	$ 942			$ 942			$ 930
Time deposits		869			869			7,676
Available for sale debt instruments		447			447			464
Equity and other investments		40			40			45
Restricted Cash and Cash Equivalents		41	[2]	$ 36	41	[2]	$ 36	52
Total		2,339			2,339			$ 9,167
Dividends received		$ 16		$ 38	$ 43		$ 43

[1] Dividends received were $43 and $16 during the six and three months ended June 30, 2022 and $43 and $38 during the same periods in the prior year.

[2] Reflects amounts restricted in support of our property sales, workers’ compensation programs, and insurance premiums.