Fair Value Measurements (Tables)

12 Months Ended

Dec. 30, 2011

Fair Value Disclosures [Abstract]

Schedule of fair value of investment assets

The following is a summary of the fair value of the Company's investment assets:

	Fiscal Years
	2011								2010
(Dollars in Millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Certificates of Deposit	$	—	$	477	$	—	$	477	$	—	$	—	$	—	$	—
Corporate Bonds	—		98		—		98		—		89		—		89
U.S. Treasury Obligations	—		53		—		53		—		34		—		34
Auction Rate Securities	—		—		15		15		—		—		15		15
Total investments at fair value	$	—	$	628	$	15	$	643	$	—	$	123	$	15	$	138

Schedule of investment maturities

These investments have the following maturities:

(Dollars in Millions)	December 2011		December 2010
Less than 1 year	$	523	$	54
1 - 2 years	32		40
2 - 5 years	73		26
Greater than 5 years	15		18
Total investments at fair value	$	643	$	138

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)	December 2011		December 2010
Long-term Debt Including Current Maturities:
Fair Value	$	10,708	$	9,624
Carrying Value	$	9,241	$	8,664

Schedule of pension plan assets at fair value by level

The pension plan assets at fair value by level, within the fair value hierarchy, as of calendar plan years 2011 and 2010:

	Fiscal Years
	2011										2010
(Dollars in Millions)	Level 1		Level 2			Level 3		Total			Level 1		Level 2			Level 3		Total
Common Stock:
Information technology	$	137	$	—		$	—	$	137		$	161	$	—		$	—	$	161
Consumer discretionary	88		—			—		88			109		—			—		109
Health care	70		—			—		70			68		—			—		68
Industrials	65		—			—		65			70		—			—		70
Energy	61		—			—		61			63		—			—		63
Financials	53		—			—		53			65		—			—		65
Consumer staples	42		—			—		42			33		—			—		33
Materials	24		—			—		24			25		—			—		25
Other	18		—			—		18			20		—			—		20
Corporate securities	—		605			—		605			—		613			—		613
Common trust funds	—		380			—		380			—		419			—		419
Derivatives liabilities	—		(247		)	—		(247		)	—		(211		)	—		(211		)
Derivatives assets	—		245			—		245			—		211			—		211
Partnerships	—		—			175		175			—		—			101		101
Government securities	—		124			—		124			—		88			—		88
Asset-backed securities	—		10			—		10			—		16			—		16
Total investments at     fair value	$	558	$	1,117		$	175	$	1,850		$	614	$	1,136		$	101	$	1,851

Schedule of changes in fair value level 3 pension plan assets

The summary of changes in the fair value of the Company’s level 3 pension plan assets for the calendar plan year 2011 is shown below.

(Dollars in Millions)	2011		2010
Balance, Beginning of Year	$	101	$	95
Purchases	71		—
Unrealized Gains	3		6
Balance, End of Year	$	175	$	101