Investments (Tables)

9 Months Ended

Sep. 28, 2012

Available-For-Sale Marketable Securities

At September 28, 2012, and December 30, 2011, available-for-sale marketable securities consisted of the following:

	Amortized Cost		Unrealized Gain		Unrealized Loss			Fair Value
September 28, 2012
U.S. government debt obligations	$	151.9	$	0.5	$	—		$	152.4
Corporate debt obligations guaranteed by FDIC		21.1		—		—			21.1
Corporate debt obligations		186.4		2.3		(0.1	)		188.6
Mortgaged backed debt obligations guaranteed by GNMA		97.2		0.8		(0.3	)		97.7
Certificates of deposit guaranteed by FDIC		3.2		—		—			3.2
Foreign government debt obligations		222.1		2.9		(0.3	)		224.7
Foreign corporate debt obligations		118.4		0.8		—			119.2
Total	$	800.3	$	7.3	$	(0.7	)	$	806.9
December 30, 2011
U.S. government debt obligations	$	195.2	$	0.5	$	—		$	195.7
Corporate debt obligations guaranteed by FDIC		66.6		0.2		—			66.8
Corporate debt obligations		201.4		0.8		(0.7	)		201.5
Mortgaged backed debt obligations guaranteed by GNMA		90.9		0.4		(0.1	)		91.2
Certificates of deposit guaranteed by FDIC		1.5		—		—			1.5
Foreign government debt obligations		221.5		1.5		—			223.0
Foreign corporate debt obligations		64.1		0.2		(0.1	)		64.2
Total	$	841.2	$	3.6	$	(0.9	)	$	843.9

Maturities Of Available-For-Sale Marketable Securities

The following table summarizes the maturities of our available-for-sale marketable securities at September 28, 2012:

	Amortized Cost		Fair Value
Less than 12 months	$	262.8	$	264.5
Due in 1 to 5 years		438.3		442.8
Due after 5 years		99.2		99.6
Total	$	800.3	$	806.9

Investments In Marketable Securities With Unrealized Losses

Investments in marketable securities with unrealized losses at September 28, 2012, and December 30, 2011, were as follows:

	Unrealized Loss Less than 12 months					Unrealized Loss Greater than 12 months				Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
September 28, 2012
Corporate debt obligations	$	16.2	$	(0.1	)	$	—	$	—	$	16.2	$	(0.1	)
Mortgaged backed debt obligations guaranteed by GNMA		29.4		(0.3	)		—		—		29.4		(0.3	)
Foreign government debt obligations		22.2		(0.3	)		—		—		22.2		(0.3	)
Total	$	67.8	$	(0.7	)	$	—	$	—	$	67.8	$	(0.7	)
December 30, 2011
Corporate debt obligations	$	81.0	$	(0.7	)	$	—	$	—	$	81.0	$	(0.7	)
Mortgaged backed debt obligations guaranteed by GNMA		31.4		(0.1	)		—		—		31.4		(0.1	)
Foreign corporate debt obligations		24.1		(0.1	)		—		—		24.1		(0.1	)
Total	$	136.5	$	(0.9	)	$	—	$	—	$	136.5	$	(0.9	)

Gross Realized Gains And Losses Related To Fixed Income Investments

The following table presents gross realized gains and losses related to fixed income investments for the three months and nine months ending September 28, 2012, and September 30, 2011:

	Third Quarter						Nine Months
	9/28/12			9/30/11			9/28/12			9/30/11
Gross realized gains	$	1.0		$	1.7		$	1.5		$	3.1
Gross realized losses		(0.2	)		(1.4	)		(0.7	)		(3.2	)
Total	$	0.8		$	0.3		$	0.8		$	(0.1	)