Supplemental Disclosures

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



(In millions of dollars)	2011			2010			2009
Assets acquired, excluding cash	$	214		$	867		$	420
Liabilities assumed	(21		)	(176		)	(24		)
Shares issued (7.6 million and 10.7 million shares in 2010 and 2009, respectively)	—			(183		)	(229		)
Contingent/deferred purchase consideration	(33		)	(81		)	(100		)
Net cash outflow for current year acquisitions	160			427			67
Purchase of other intangibles	4			3			—
Contingent payments from prior years' acquisitions	—			2			6
Deferred purchase consideration from prior years' acquisitions	11			60			—
Subtotal	$	175		$	492		$	73
Cash paid into escrow for future acquisition	62			—			—
Net cash outflow for acquisitions	$	237		$	492		$	73



(In millions of dollars)	2011		2010		2009
Interest paid	$	188	$	232	$	230
Income taxes paid, net of refunds	$	37	$	39	$	219

The Company had non-cash issuances of common stock under its share-based payment plan of $197 million, $182 million and $123 million at December 31, 2011, 2010 and 2009, respectively. The Company recorded stock-based compensation expense related to equity awards of $165 million, $174 million and $193 million for the years ended December 31, 2011, 2010 and 2009, respectively.

The consolidated statement of cash flows includes the cash flow impact of discontinued operations in each cash flow category. The cash flow impact of discontinued operations from the operating, financing and investing cash flow categories is as follows:



For the Year Ended December 31,
(In millions of dollars)	2011		2010			2009
Net cash provided by (used for) operations	$	11	$	(6	)	$	50
Net cash used for investing activities	$	—	$	(14	)	$	(42	)
Effect of exchange rate changes on cash and cash equivalents	$	—	$	(2	)	$	5

The information above excludes the cash flow impacts of actual disposal transactions related to discontinued operations because the Company believes these transactions to be cash flows attributable to the parent company, arising from its decision to dispose of the discontinued operation. In 2010, the Company’s cash flow reflects cash provided by investing activities of $1.13 billion from the disposal of Kroll and $110 million related to the disposition of KLS and in 2009, $75 million primarily from the disposal of Kroll Government Services (“KGS”).

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



For the Year Ended December 31,
(In millions of dollars)	2011			2010			2009
Balance at beginning of year	$	114		$	107		$	93
Provision charged to operations	11			20			23
Accounts written-off, net of recoveries	(21		)	(26		)	(14		)
Effect of exchange rate changes and other	1			13			5
Balance at end of year	$	105		$	114		$	107