Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2017

Equity [Abstract]

Summary of Components of AOCI

Below is a summary of the components of AOCI:

(in millions)	Foreign Currency Translation			Marketable Securities		Derivative Instruments			Defined Benefit Plans		Income Taxes		Total
Balance at December 31, 2016	$	(623	)	$	—	$	10		$	21	$	22	$	(570	)
Other comprehensive income before reclassifications		257			—		(5	)		—		83		335
Reclassification adjustments		—			—		2			—		—		2
Balance at June 30, 2017	$	(366	)	$	—	$	7		$	21	$	105	$	(233	)

Summary of Adjustments for (Gains) Losses Reclassified from AOCI into Condensed Consolidated Statements of Income and Affected Financial Statement Line Item

Below is a summary of the adjustments for (gains) losses reclassified from AOCI into the condensed consolidated statements of income and the affected financial statement line item:

	Affected Financial Statement	Three Months Ended June 30,					Six Months Ended June 30,
(in millions)	Line Item	2017			2016		2017			2016
Derivative instruments:
Interest rate swaps	Interest expense	$	—		$	—	$	—		$	3
Foreign exchange forward contracts	Revenues		4			3		9			6
Foreign exchange forward contracts	Other expense (income), net		(4	)		—		(7	)		—
Total before income taxes			—			3		2			9
Income tax (expense) benefit			—			—		—			2
Total net of income taxes		$	—		$	3	$	2		$	7