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Derivative Financial Instruments (Effect of Deriative Instruments on Income Statement and Statement of Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	$ 4	$ 8	$ 3	$ 23
Amount of gain reclassified from OCI into revenue	(2,076)	(1,380)	(5,246)	(4,016)
Reclassification out of Accumulated Other Comprehensive Income | Foreign Exchange Contract | Cash Flow Hedges
Derivative Financial Instruments
Amount of gain reclassified from OCI into revenue	0	6	2	10
Amount of (gain) loss reclassified from OCI into cost of revenue	0	0	2	1
Cash Flow Hedging | Foreign Exchange Contract | Cash Flow Hedges
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	(4)	(6)	(3)	(25)
Cash Flow Hedging | Foreign Exchange Contract | Fair Value Hedges
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	0	2	0	(2)
Cash Flow Hedging | Cross Currency Swaps
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	36	113	23	207
Cash Flow Hedging | Foreign Currency Denominated Debt
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	0	0	0	31
Interest Expense | Cash Flow Hedging | Foreign Exchange Contract | Fair Value Hedges
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	0	1	0	2
Interest Expense | Cash Flow Hedging | Cross Currency Swaps
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	8	9	23	22
Selling, General and Administrative Expenses | Cash Flow Hedging | Foreign Exchange Contract | Fair Value Hedges
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	$ 0	$ 39	$ 0	$ 50

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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