Borrowings (Tables)

12 Months Ended

Dec. 31, 2011

Borrowings (Tables) [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

Our long-term debt as of December 31, 2011 and December 25, 2010 was as follows:

(In Millions)	2011		2010
Senior notes due 2016 at 1.95%	$	1,498	$	—
Senior notes due 2021 at 3.30%		1,995		—
Senior notes due 2041 at 4.80%		1,489		—
2009 junior subordinated convertible debentures due 2039 at 3.25%		1,052		1,041
2005 junior subordinated convertible debentures due 2035 at 2.95%		919		908
2007 Arizona bonds due 2037 at 5.30%		131		128
Total long-term debt	$	7,084	$	2,077

Convertible Debentures Interest Rates [Table Text Block]

	2009 Debentures		2005 Debentures
Annual coupon interest rate	3.25	%	2.95	%
Annual effective interest rate	7.20	%	6.45	%
Maximum amount of contingent interest that will accrue per year	0.50	%	0.40	%

Convertible Debentures Other Details [Table Text Block]

	2009 Debentures				2005 Debentures
	Dec. 31,		Dec. 25,		Dec. 31,		Dec. 25,
(In Millions, Except Per Share Amounts)	2011		2010		2011		2010
Outstanding principal	$	2,000	$	2,000	$	1,600	$	1,600
Equity component carrying amount	$	613	$	613	$	466	$	466
Unamortized discount	$	933	$	943	$	669	$	680
Net debt carrying amount	$	1,052	$	1,041	$	919	$	908
Conversion rate (shares of common stock per $1,000 principal amount of debentures)		44.55		44.09		32.94		32.52
Effective conversion price (per share of common stock)	$	22.45	$	22.68	$	30.36	$	30.75

Aggregate Debt Maturities [Table Text Block]

As of December 31, 2011, our aggregate debt maturities based on outstanding principal were as follows (in millions):

Year Payable
2012	$	—
2013		—
2014		—
2015		—
2016		1,500
2017 and thereafter		7,225
Total	$	8,725