Financial Instruments (Effects of Net Investment Hedges on Accumulated Other Comprehensive Losses) (Details) - Net Investment Hedging [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
(Gain) Loss Recognized in Accumulated Other Comprehensive Losses	$ (247)	$ 73	$ (375)	$ (168)
(Gain) Loss Recognized in Net Earnings	0	(2)	0	(7)
Foreign currency contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Gain) Loss Recognized in Accumulated Other Comprehensive Losses	0	19	0	(16)
(Gain) Loss Recognized in Net Earnings	0	(2)	0	(7)
Foreign currency denominated debt [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Gain) Loss Recognized in Accumulated Other Comprehensive Losses	(247)	54	(375)	(152)
(Gain) Loss Recognized in Net Earnings	$ 0	$ 0	$ 0	$ 0