Other Financial Data (Tables)

6 Months Ended

Jun. 30, 2016

Other Financial Data [Abstract]

Schedule of Other Income (Expense)

Other income consists of the following (in millions):

	Three months ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Foreign currency remeasurement (loss) gain	$	1		$	(7	)	$	(16	)	$	17
Gain on disposal of business	6			1			41			20
Equity earnings	1			4			3			6
Income (loss) on financial instruments	(8		)	3			(10		)	—
Total	$	—		$	1		$	18		$	43

Schedule of Allowance for Doubtful Accounts

An analysis of the Allowance for doubtful accounts is as follows (in millions):

	Three months ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Balance at beginning of period	$	62		$	70		$	58		$	74
Provision charged to Other general expenses	6			3			12			11
Accounts written off, net of recoveries	(4		)	(13		)	(7		)	(22		)
Foreign currency translation	—			5			1			2
Balance at end of period	$	64		$	65		$	64		$	65

Schedule of Other Current Assets

The components of Other current assets are as follows (in millions):

	June 30, 2016		December 31, 2015
Taxes receivable	$	146	$	94
Prepaid expenses	152		130
Deferred project costs	94		92
Other	3		13
Total	$	395	$	329

Schedule of Other Non-current Assets

The components of Other non-current assets are as follows (in millions):

	June 30, 2016		December 31, 2015
Deferred project costs	$	200	$	210
Investments	127		135
Taxes receivable	81		82
Other	168		165
Total	$	576	$	592

Schedule of Other Current Liabilities

The components of Other current liabilities are as follows (in millions):

	June 30, 2016		December 31, 2015
Deferred revenue	$	433	$	394
Taxes payable	67		94
Other	372		331
Total	$	872	$	819

Schedule of Other Non-current Liabilities

The components of Other non-current liabilities are as follows (in millions):

	June 30, 2016		December 31, 2015
Taxes payable	$	260	$	223
Deferred revenue	151		159
Leases	172		166
Compensation and benefits	59		59
Other	125		162
Total	$	767	$	769