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Derivative Instruments (Forward Currency Exchange Contracts) (Details) - Foreign Exchange Contract $ in Millions, € in Billions	3 Months Ended	9 Months Ended
	Mar. 31, 2023	Sep. 30, 2023 USD ($)	Sep. 30, 2023 EUR (€)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)
Derivative [Line Items]
Derivative, notional amount		$ 7,147		$ 6,068
Maximum Remaining Maturity of Foreign Currency Derivatives	3 years 10 months 24 days	3 years 1 month 6 days
Total fair value		$ 197		17
Other current assets
Derivative [Line Items]
Derivative assets		212		29
Other noncurrent assets
Derivative [Line Items]
Derivative assets		12		90
Other current liabilities
Derivative [Line Items]
Derivative liabilities		(14)		(85)
Other noncurrent liabilities
Derivative [Line Items]
Derivative liabilities		(13)		(17)
Non-Designated
Derivative [Line Items]
Derivative, notional amount		4,726		3,417
Total fair value		80		(70)
Non-Designated \| Other current assets
Derivative [Line Items]
Derivative assets		86		9
Non-Designated \| Other noncurrent assets
Derivative [Line Items]
Derivative assets		0		0
Non-Designated \| Other current liabilities
Derivative [Line Items]
Derivative liabilities		(6)		(79)
Non-Designated \| Other noncurrent liabilities
Derivative [Line Items]
Derivative liabilities		0		0
Cash Flow \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount		838		1,053
Total fair value		23		14
Cash Flow \| Designated as Hedging Instrument \| Other current assets
Derivative [Line Items]
Derivative assets		31		20
Cash Flow \| Designated as Hedging Instrument \| Other noncurrent assets
Derivative [Line Items]
Derivative assets		1		1
Cash Flow \| Designated as Hedging Instrument \| Other current liabilities
Derivative [Line Items]
Derivative liabilities		(8)		(6)
Cash Flow \| Designated as Hedging Instrument \| Other noncurrent liabilities
Derivative [Line Items]
Derivative liabilities		(1)		(1)
Net Investment \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount		1,583	€ 1.5	1,598	€ 1.5
Total fair value		94		73
Net Investment \| Designated as Hedging Instrument \| Other current assets
Derivative [Line Items]
Derivative assets		95		0
Net Investment \| Designated as Hedging Instrument \| Other noncurrent assets
Derivative [Line Items]
Derivative assets		11		89
Net Investment \| Designated as Hedging Instrument \| Other current liabilities
Derivative [Line Items]
Derivative liabilities		0		0
Net Investment \| Designated as Hedging Instrument \| Other noncurrent liabilities
Derivative [Line Items]
Derivative liabilities		$ (12)		$ (16)