(Gains And Losses Recognized In Consolidated Statement Of Operations On Qualifying And Non-Qualifying Financial Instruments) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated OCI into income (effective portion)	$ (26)	$ (4)	$ (2)
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivative, net	0	0	0
Designated as Hedging Instrument [Member] \| Cost Of Products Sold [Member] \| Cash Flow Hedging [Member] \| Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated OCI into income (effective portion)	(25)	(3)	(1)
Designated as Hedging Instrument [Member] \| Interest Income Expense [Member] \| Cash Flow Hedging [Member] \| Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated OCI into income (effective portion)	(1)	(1)	(1)
Designated as Hedging Instrument [Member] \| Interest Income Expense [Member] \| Fair Value Hedging [Member] \| Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in unrealized gain (loss) on fair value hedging instruments	38	30	16
Designated as Hedging Instrument [Member] \| Interest Income Expense [Member] \| Fair Value Hedging [Member] \| Debt [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in unrealized gain (loss) on hedged item in fair value hedge	(38)	(30)	(16)
Designated as Hedging Instrument [Member] \| Net (gains) losses on sales and impairments of businesses \| Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivative, net	2	0	0
Designated as Hedging Instrument [Member] \| Net (gains) losses on sales and impairments of businesses \| Net Investment Hedging [Member] \| Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivative, net	2	0	0
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivative, net	(2)	1	3
Not Designated as Hedging Instrument [Member] \| Cost Of Products Sold [Member] \| Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivative, net	0	(2)	1
Not Designated as Hedging Instrument [Member] \| Cost Of Products Sold [Member] \| Energy Related Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivative, net	$ (2)	$ 3	$ 2

Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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-Publisher FASB
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-SubTopic 25
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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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