Stockholder's Equity (Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 02, 2015	Oct. 03, 2014	Oct. 02, 2015	Oct. 03, 2014
Before Tax Income (Loss) [Abstract]
Total other comprehensive income (loss), Before Tax Amount	$ (139)	$ (141)	$ (88)	$ (108)
Tax Expense [Abstract]
Total other comprehensive income (loss), Tax (Expense)/Benefit	3	0	6	(1)
Net of Tax Income (Loss) [Abstract]
Foreign currency translation adjustments, Net of Tax Amount			(70)	(105)
Unrealized gain on available-for-sale securities, Net of Tax Amount	(6)	0	0	0
Total pension and other post-retirement benefit plans, Net of Tax Amount	6	3	13	4
Other comprehensive loss, net of taxes	(136)	(141)	(82)	(109)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period			21	279
Current-period other comprehensive (loss) income, net of taxes			(70)	(105)
Amounts reclassified from accumulated other comprehensive loss, net of taxes			(12)	7
Balance at end of period	(61)	181	(61)	181
Foreign Currency Translation Adjustment
Before Tax Income (Loss) [Abstract]
Foreign currency translation adjustments, Before Tax Amount	(110)	(133)	(57)	(98)
Tax Expense [Abstract]
Foreign currency translation adjustments, Tax (Expense)/Benefit	0	0	0	(1)
Net of Tax Income (Loss) [Abstract]
Foreign currency translation adjustments, Net of Tax Amount	(110)	(133)	(57)	(99)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Current-period other comprehensive (loss) income, net of taxes	(110)	(133)	(57)	(99)
Cash Flow Hedge
Before Tax Income (Loss) [Abstract]
Gain (loss) on foreign currency forward and option contracts, Before Tax Amount	(14)	(5)	(12)	(6)
Tax Expense [Abstract]
Gain (loss) on foreign currency forward and option contracts, Tax Expense	0	0	0	0
Net of Tax Income (Loss) [Abstract]
Foreign currency translation adjustments, Net of Tax Amount			(12)	(6)
Gain (loss) on foreign currency forward and option contracts, Net of Tax Amount	(14)	(5)	(12)	(6)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period			(2)	0
Current-period other comprehensive (loss) income, net of taxes			(12)	(6)
Amounts reclassified from accumulated other comprehensive loss, net of taxes			0	0
Balance at end of period	(14)	(6)	(14)	(6)
Accumulated Net Unrealized Investment Gain (Loss)
Before Tax Income (Loss) [Abstract]
Unrealized gain on available-for-sale securities, Before Tax Amount	(6)
Tax Expense [Abstract]
Unrealized gain on available-for-sale securities, Tax (Expense)/Benefit	0
Net of Tax Income (Loss) [Abstract]
Unrealized gain on available-for-sale securities, Net of Tax Amount	(6)
Transition Obligation
Before Tax Income (Loss) [Abstract]
Amortization of transition obligation, Before Tax Amount		1		1
Tax Expense [Abstract]
Amortization of transition obligation, Tax (Expense)/Benefit		0		0
Net of Tax Income (Loss) [Abstract]
Amortization of transition obligation, Net of Tax Amount		1		1
Accumulated Defined Benefit Plans Adjustment
Before Tax Income (Loss) [Abstract]
Amortization of prior service (credit) / cost, Before Tax Amount	(9)	(4)	(18)	(5)
Foreign currency exchange rate changes, Before Tax Amount			(1)
Tax Expense [Abstract]
Amortization of prior service (credit) / cost, Tax (Expense)/Benefit	3	0	6	0
Foreign currency exchange rate changes, Tax (Expense)/Benefit			0
Net of Tax Income (Loss) [Abstract]
Amortization of prior service (credit) / cost, Net of Tax Amount	(6)	(4)	(12)	(5)
Foreign currency exchange rate changes, Net of Tax Amount			(1)
Other Pension and Other Post-retirement Benefit Plans
Before Tax Income (Loss) [Abstract]
Total pension and other post-retirement benefit plans, Before Tax Amount	(9)	(3)	(19)	(4)
Tax Expense [Abstract]
Total pension and other post-retirement benefit plans, Tax (Expense)/Benefit	3	0	6	0
Net of Tax Income (Loss) [Abstract]
Foreign currency translation adjustments, Net of Tax Amount			(1)	0
Total pension and other post-retirement benefit plans, Net of Tax Amount	(6)	(3)	(13)	(4)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period			339	285
Current-period other comprehensive (loss) income, net of taxes			(1)	0
Amounts reclassified from accumulated other comprehensive loss, net of taxes			(12)	7
Balance at end of period	326	292	326	292
Foreign Currency Translation Adjustment
Net of Tax Income (Loss) [Abstract]
Foreign currency translation adjustments, Net of Tax Amount			(57)	(99)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period			(316)	(6)
Current-period other comprehensive (loss) income, net of taxes			(57)	(99)
Amounts reclassified from accumulated other comprehensive loss, net of taxes			0	0
Balance at end of period	$ (373)	$ (105)	$ (373)	$ (105)