Fair Value Measurements (Tables)

3 Months Ended

Mar. 28, 2014

Fair Value Disclosures [Abstract]

Schedule of fair value of investment assets

The Company's investment assets are carried at fair value on the consolidated balance sheets as summarized in the table below. Additionally, the amortized cost basis of these investments was $422 million and $668 million as of March 28, 2014 and December 27, 2013, respectively.

	March 28, 2014								December 27, 2013
(Dollars in Millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Certificates of Deposit and Commercial Paper	$	—	$	230	$	—	$	230	$	—	$	472	$	—	$	472
Corporate Bonds	—		129		—		129		—		132		—		132
Government Securities	—		49		—		49		—		49		—		49
Auction Rate Securities	—		—		15		15		—		—		15		15
Total investments at fair value	$	—	$	408	$	15	$	423	$	—	$	653	$	15	$	668

Schedule of investment maturities

These investments have the following maturities:

(Dollars in millions)	March 28, 2014		December 27, 2013
Less than 1 year	$	248	$	487
1 - 2 years	70		58
2 - 5 years	87		105
Greater than 5 years	18		18
Total	$	423	$	668

Schedule of fair value and carrying value of long-term debt

The fair value and carrying value of the Company's long-term debt is as follows:

(Dollars in millions)	March 28, 2014		December 27, 2013
Long-term Debt (Including Current Maturities):
Fair Value	$	10,411	$	10,354
Carrying Value	$	9,346	$	9,555