Supplemental Disclosures (Tables)

12 Months Ended

Dec. 31, 2015

Supplemental Cash Flow Information [Abstract]

Additional information concerning acquisitions, interest and income taxes paid

The following schedule provides additional information concerning acquisitions, interest and income taxes paid:

(In millions of dollars)	2015			2014			2013
Assets acquired, excluding cash	$	1,327		$	815		$	217
Liabilities assumed	(199		)	(64		)	(53		)
Contingent/deferred purchase consideration	(176		)	(197		)	(39		)
Net cash outflow for current year acquisitions	952			554			125
Purchase of other intangibles	—			—			2
Net cash outflow for acquisitions	$	952		$	554		$	127

(In millions of dollars)	2015		2014		2013
Interest paid	$	146	$	172	$	170
Income taxes paid, net of refunds	$	433	$	426	$	360

Analysis of allowance for doubtful accounts

An analysis of the allowance for doubtful accounts is as follows:

For the Years Ended December 31,
(In millions of dollars)	2015			2014			2013
Balance at beginning of year	$	95		$	98		$	106
Provision charged to operations	14			20			16
Accounts written-off, net of recoveries	(18		)	(17		)	(19		)
Effect of exchange rate changes and other	(4		)	(6		)	(5		)
Balance at end of year	$	87		$	95		$	98