Derivative Instruments and Hedging Activities (Pre-Tax Gains (Losses) On Derivatives Designated As Hedging Instruments) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gains (Loss) [Line Items]
Revenues	$ 23,650	$ 18,893
Cost of Products Sold	21,753	17,345
Interest Expense	92	87
Other (Income) Expense - Net	(33)	(33)
Designated As Hedging Instrument [Member]
Derivative Instruments, Gains (Loss) [Line Items]
Total amount recognized in earnings	98	75
Designated As Hedging Instrument [Member] | Revenues [Member]
Derivative Instruments, Gains (Loss) [Line Items]
Interest contracts effective amount recognized in earnings		(14)
Commodity Contracts effective amount recognized in earnings	0	0
Total amount recognized in earnings	0	(14)
Designated As Hedging Instrument [Member] | Cost of Products Sold [Member]
Derivative Instruments, Gains (Loss) [Line Items]
Commodity Contracts effective amount recognized in earnings	98	89
Total amount recognized in earnings	$ 98	$ 89