Derivative Instruments and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2021

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Effect of Derivative Instruments Designated as Cash Flow Hedges and Not Designated as Hedges on Consolidated Statement of (Loss) Income

The effect of derivative instruments designated as cash flow hedges, and those not designated as hedges, on the Consolidated Statement of Income (Loss) was as follows:

							(Stated in millions)
	Gain (Loss) Recognized in Income (Loss)
	Second Quarter						Six Months
	2021			2020			2021			2020			Consolidated Statement of Income (Loss) Classification
Derivatives designated as cash flow hedges:
Cross currency swaps	$	38		$	92		$	(178	)	$	150		Cost of services/sales
Foreign exchange contracts		3			(4	)		5			(5	)	Cost of services/sales
	$	41		$	88		$	(173	)	$	145
Derivatives not designated as hedges:
Foreign exchange contracts	$	(32	)	$	11		$	(26	)	$	2		Cost of services/sales