Income Taxes Effective Tax Rate Reconciliation, Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 01, 2016		Apr. 03, 2015		Mar. 28, 2014
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in accounting policy, amount	$ 23
Effective income tax rate reconciliation, change in accounting policy, percent	230.00%		(0.00%)		(0.00%)
Effective income tax rate reconciliation, change in valuation allowance, percent	743.60%		13.40%		(21.50%)
Effective tax rate reconciliation, foreign income tax rate differential, percent	377.40%		52.40%		(5.10%)
Effective tax rate reconciliation, tax audit adjustments, amount	$ 24
Effective tax rate reconciliation, tax audit adjustments, amount	240.00%
SEC settlement			$ (190)
Effective tax rate reconciliation, litigation settlement, amount			$ 73
Effective income tax rate reconciliation, litigation settlement	0.00%		10.90%		0.00%
Income tax (benefit) expense	$ 62	[1]	$ 464	[2]	$ (174)	[2]
Effective tax rate reconciliation, other items, net	(97.50%)		0.50%		0.50%
Effective tax rate reconciliation, increase in uncertain tax positions	$ 7		$ 12		$ 10
Other Restructuring
Income Tax Rate Reconciliation [Line Items]
Income tax (benefit) expense					$ (10)
Effective tax rate reconciliation, other items, net					(1.50%)
Transfer Pricing and Foreign Income Inclusions and Exchange Losses
Income Tax Rate Reconciliation [Line Items]
Effective tax rate reconciliation, increase in uncertain tax positions					$ 41
Effective Income Tax Rate Reconciliation, Tax Contingency, Foreign, Percent					6.00%
Global Health
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount					$ 58
Effective income tax rate reconciliation, change in valuation allowance, percent					8.40%
Investment Recoveries
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount			$ (325)		$ 91
Effective income tax rate reconciliation, change in valuation allowance, percent			(48.40%)		13.10%
Foreign Tax Rate Differential
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount					$ 91
Effective income tax rate reconciliation, change in valuation allowance, percent					13.10%
NPS Segment
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, divestiture of business	$ 27
Effective income tax rate reconciliation, divestiture of business, percent	270.00%
Luxembourg | Foreign Tax Authority
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount	$ 47
Effective income tax rate reconciliation, change in valuation allowance, percent	470.00%
Effective tax rate reconciliation, foreign income tax rate differential, amount	$ 47
Effective tax rate reconciliation, foreign income tax rate differential, percent	470.00%
U.K.
Income Tax Rate Reconciliation [Line Items]
Effective tax rate reconciliation, change in uncertain tax positions, amount	$ 58
Tax audit settlements	(580.00%)
U.K. | Foreign Tax Authority
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount			$ 235
Effective income tax rate reconciliation, change in valuation allowance, percent			35.00%

[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.