Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 01, 2016		Apr. 03, 2015		Mar. 28, 2014
Income Taxes [Abstract]
Domestic entities	$ (222)		$ (761)		$ 1
Entities outside the U.S.	232		90		693
Income (loss) from continuing operations, before taxes	10	[1]	(671)	[2]	694	[2]
Income tax expense (benefit) on income from continuing operations, current [Abstract]
Federal	(79)		(123)		(68)
State	(22)		(43)		(16)
Foreign	59		94		130
Total Current	(42)		(72)		46
Income tax expense (benefit) on income from continuing operations, deferred [Abstract]
Federal	(39)		(76)		89
State	48		(14)		17
Foreign	(29)		(302)		22
Total Deferred	(20)		(392)		128
Total income tax (benefit) expense	(62)	[1]	(464)	[2]	174	[2]
Interest and penalties for uncertain tax positions included in current provision (benefit)	$ (4)		$ 1		$ (6)
Statutory rate	35.00%		(35.00%)		35.00%
Difference between the U.S. federal statutory tax rate and effective tax rate [Abstract]
Statutory rate	35.00%		(35.00%)		35.00%
State income tax, net of federal tax	(145.70%)		(4.10%)		(0.10%)
Change in uncertain tax positions	(685.00%)		(0.70%)		6.00%
Foreign tax rate differential	(377.40%)		(52.40%)		5.10%
Income tax credits	(58.00%)		(0.80%)		(0.40%)
Valuation allowance	743.60%		13.40%		(21.50%)
Loss on sale of securities	0.00%		0.00%		1.50%
SEC settlements	0.00%		10.90%		0.00%
U.S. GAAP accounting change impact	(230.00%)		0.00%		0.00%
Other items, net	97.50%		(0.50%)		(0.50%)
Effective tax rate	(620.00%)		(69.20%)		25.10%
Deferred Tax Assets
Employee benefits	$ 153		$ 183
Tax loss/credit carryforwards	1,158		1,082
Accrued interest	20		24
State taxes	7		7
Cumulative foreign exchange gain/loss	2		5
Contract accounting	110		83
Other assets	47		60
Total Deferred Tax Assets	1,497		1,444
Valuation allowance	(1,036)		(958)
Net Deferred Tax Assets	461		486
Deferred Tax Liabilities
Depreciation and amortization	(183)		(168)
Investment basis differences	(91)		(94)
Other liabilities	(23)		(44)
Total Deferred Tax Liabilities	(297)		(306)
Total Net Deferred Tax Assets (Liabilities)	164		180
Current:
Income Tax Receivables	60		112
Deferred tax assets, current	60		112
Non-current:
Income Taxes Receivable and Prepaid Taxes	81		109
Deferred Tax Assets	345		396
Deferred tax assets, noncurrent	426		505
Deferred tax assets, total	486		617
Current:
Current Tax Liability for Uncertain Tax Positions	(18)		0
Income taxes payable, current	(22)		(25)
Deferred tax liabilities, current	(40)		(25)
Non-current:
Deferred taxes, noncurrent	(181)		(216)
Tax liability for uncertain tax positions, noncurrent	(175)		(237)
Deferred tax liabilities, noncurrent	(356)		(453)
Deferred tax liabilities, total	(396)		(478)
Valuation Allowance [Line Items]
Valuation allowance	1,036		$ 958
Increase (decrease) in valuation allowance	$ 78
U.K.
Difference between the U.S. federal statutory tax rate and effective tax rate [Abstract]
Tax audit settlements	(580.00%)
U.K. | Foreign Tax Authority
Difference between the U.S. federal statutory tax rate and effective tax rate [Abstract]
Valuation allowance			35.00%
Luxembourg | Foreign Tax Authority
Difference between the U.S. federal statutory tax rate and effective tax rate [Abstract]
Foreign tax rate differential	(470.00%)
Valuation allowance	470.00%
Valuation Allowance [Line Items]
Increase (decrease) in valuation allowance	$ 47
NPS Segment
Valuation Allowance [Line Items]
Increase (decrease) in valuation allowance	$ 27

[1] Due to the adoption of ASU 2016-09 certain balances related to excess tax benefits from stock compensation were adjusted prospectively as described in Note 1.

[2] Certain prior year balances were adjusted for certain errors in previously issued financial statements related to income taxes as described in Note 1 and to give effect to discontinued operations as described in Note 4.