Investigations and Out of Period Adjustments (Rollover impact on Income (loss) from continuing operations, before taxes and Impact on Foreign Adjustments) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Dec. 30, 2011
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	$ (20)
Intentional irregularities [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(1)
Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(19)
Adjustments relating to fiscal years prior to 2008 [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	5
Adjustments relating to fiscal years prior to 2008 [Member] | Intentional irregularities [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	10
Adjustments relating to fiscal years prior to 2008 [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(5)
Fiscal 2011 Adjustments
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(3)
Fiscal 2011 Adjustments | Intentional irregularities [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	0
Fiscal 2011 Adjustments | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(3)
Adjustments relating to fiscal 2009 [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(23)
Adjustments relating to fiscal 2009 [Member] | Intentional irregularities [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(7)
Adjustments relating to fiscal 2009 [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(16)
Adjustments relating to fiscal 2010 [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	1
Adjustments relating to fiscal 2010 [Member] | Intentional irregularities [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(4)
Adjustments relating to fiscal 2010 [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	5
Fiscal 2013 | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(4)
Fiscal 2013 | Fiscal 2011 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	0
Fiscal 2013 | Fiscal 2012 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	0
Fiscal 2013 | First Nine Months Fiscal 2013 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(4)
Fiscal 2012 | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	89
Fiscal 2012 | Fiscal 2011 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	0
Fiscal 2012 | Fiscal 2012 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	79
Fiscal 2012 | First Nine Months Fiscal 2013 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	10
Fiscal 2011 | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	6
Fiscal 2011 | Fiscal 2011 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	52
Fiscal 2011 | Fiscal 2012 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(29)
Fiscal 2011 | First Nine Months Fiscal 2013 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(17)
Fiscal 2010 | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(42)
Fiscal 2010 | Fiscal 2011 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(48)
Fiscal 2010 | Fiscal 2012 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(9)
Fiscal 2010 | First Nine Months Fiscal 2013 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	15
Prior fiscal years (unaudited) | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(49)
Prior fiscal years (unaudited) | Fiscal 2011 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(4)
Prior fiscal years (unaudited) | Fiscal 2012 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	(41)
Prior fiscal years (unaudited) | First Nine Months Fiscal 2013 Adjustments | Operating costs inappropriately capitalized [Member] | Other errors [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Amount of pre-tax adjustment	$ (4)