Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Dec. 28, 2012
Foreign Currency Translation [Abstract]
Balance at March 30, 2012	$ 160
Current-period other comprehensive (loss) income, net of taxes and non-controlling interest	(86)
Balance at December 28, 2012	74
Pension and Other Postretirement Benefit Expense [Abstract]
Balance at March 30, 2012	(1,253)
Current-period other comprehensive (loss) income, net of taxes and non-controlling interest	67
Balance at December 28, 2012	(1,186)
Accumulated Other Comprehensive Loss
Balance at March 30, 2012	(1,093)
Current-period other comprehensive (loss) income, net of taxes and non-controlling interest	(19)
Balance at December 28, 2012	$ (1,112)