Employee Benefits

6 Months Ended

Jun. 30, 2011

Employee Benefits

Employee Benefits

11.   Employee Benefits

The following table provides the components of the net periodic benefit cost for Aon’s U.S. pension plans, along with the material international plans, which are located in the U.K., the Netherlands, and Canada (in millions):

	Three months ended June 30,
	U.S.						International
	2011			2010			2011			2010
Service cost	$	—		$	—		$	5		$	3
Interest cost	31			30			68			60
Expected return on plan assets	(30		)	(29		)	(73		)	(57		)
Amortization of net loss	7			5			14			12
Net periodic benefit cost	$	8		$	6		$	14		$	18

	Six months ended June 30,
	U.S.						International
	2011			2010			2011			2010
Service cost	$	—		$	—		$	10		$	6
Interest cost	61			61			134			122
Expected return on plan assets	(60		)	(59		)	(144		)	(117		)
Amortization of net loss	15			11			27			26
Net periodic benefit cost	$	16		$	13		$	27		$	37

Based on current assumptions, in 2011, Aon plans to contribute $127 million and $285 million to its U.S. and material international defined benefit pension plans, respectively.  For the first six months of 2011, contributions of $24 million have been made to the Company’s U.S. pension plans and $154 million have been made to its material international pension plans.