Debt (Summary of Components of Debt) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Jan. 01, 2016	Apr. 03, 2015
Debt Instrument [Line Items]
Less: current portion	$ 0	$ (350)
Total long-term portion	1,740	1,746
Senior Notes
Debt Instrument [Line Items]
Principal Amount	1,750	2,100
Less: unamortized discount and issuance costs	(10)	(4)
Total debt	1,740	2,096
Less: current portion	0	(350)
Total long-term portion	$ 1,740	$ 1,746
Senior Notes \| 2.75% due September 15, 2015
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.75%
Maturity date	Sep. 15, 2015	Sep. 15, 2015
Principal Amount	$ 0	$ 350
Effective interest rate (as a percent)	0.00%	2.76%
Senior Notes \| 2.75% due June 15, 2017
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.75%
Maturity date	Jun. 15, 2017	Jun. 15, 2017
Principal Amount	$ 600	$ 600
Effective interest rate (as a percent)	2.79%	2.79%
Senior Notes \| 4.20% due September 15, 2020
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.20%
Maturity date	Sep. 15, 2020	Sep. 15, 2020
Principal Amount	$ 750	$ 750
Effective interest rate (as a percent)	4.25%	4.25%
Senior Notes \| 3.95% due June 15, 2022
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.95%
Maturity date	Jun. 15, 2022	Jun. 15, 2022
Principal Amount	$ 400	$ 400
Effective interest rate (as a percent)	4.05%	4.05%

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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-Publisher FASB
-Name Accounting Standards Codification
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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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