Derivative Instruments and Hedging Activities (Pre-Tax Gains (Losses) On Derivatives Not Designated As Hedging Instruments) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative [Line Items]
Revenues	$ 16,297	$ 17,068	$ 31,601	$ 32,594
Cost of Products Sold	15,325	15,887	29,701	30,524
Other (Income) Expense - Net	(13)	(2)	(21)	(17)
Total gain (loss) recognized in earnings	(76)	108	22	(158)
Revenues [Member]
Derivative [Line Items]
FX Contracts	(10)	28	(2)	25
Total gain (loss) recognized in earnings	(10)	28	(2)	25
Cost of Products Sold [Member]
Derivative [Line Items]
FX Contracts	51	(186)	51	(201)
Commodity Contracts	(131)	392	(11)	79
Total gain (loss) recognized in earnings	(80)	206	40	(122)
Other (Income) Expense - Net [Member]
Derivative [Line Items]
FX Contracts	14	(126)	(16)	(61)
Total gain (loss) recognized in earnings	$ 14	$ (126)	$ (16)	$ (61)

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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