Fair Value Measurements - Summary of Financial Assets Measured at Fair Value, Recurring Basis (Details) - USD ($) $ in Millions	Apr. 02, 2016	Jan. 02, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 9	$ 10
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	358	601
Total liabilities	72	160
Recurring | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money-market securities	55	273
Recurring | Other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	9	10
Derivative assets, foreign currency forward contracts		14
Recurring | Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets, foreign currency forward contracts		2
Trading securities	294	302
Recurring | Other current liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		118
Derivative liabilities, foreign currency forward contracts	28	6
Recurring | Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	36	33
Derivative liabilities, foreign currency forward contracts	8	3
Recurring | Quoted Prices In Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	358	585
Total liabilities	0	0
Recurring | Quoted Prices In Active Markets (Level 1) | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money-market securities	55	273
Recurring | Quoted Prices In Active Markets (Level 1) | Other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	9	10
Derivative assets, foreign currency forward contracts		0
Recurring | Quoted Prices In Active Markets (Level 1) | Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets, foreign currency forward contracts		0
Trading securities	294	302
Recurring | Quoted Prices In Active Markets (Level 1) | Other current liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		0
Derivative liabilities, foreign currency forward contracts	0	0
Recurring | Quoted Prices In Active Markets (Level 1) | Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0	0
Derivative liabilities, foreign currency forward contracts	0	0
Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	0	16
Total liabilities	36	9
Recurring | Significant Other Observable Inputs (Level 2) | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money-market securities	0	0
Recurring | Significant Other Observable Inputs (Level 2) | Other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Derivative assets, foreign currency forward contracts		14
Recurring | Significant Other Observable Inputs (Level 2) | Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets, foreign currency forward contracts		2
Trading securities	0	0
Recurring | Significant Other Observable Inputs (Level 2) | Other current liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		0
Derivative liabilities, foreign currency forward contracts	28	6
Recurring | Significant Other Observable Inputs (Level 2) | Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0	0
Derivative liabilities, foreign currency forward contracts	8	3
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	0	0
Total liabilities	36	151
Recurring | Significant Unobservable Inputs (Level 3) | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money-market securities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Derivative assets, foreign currency forward contracts		0
Recurring | Significant Unobservable Inputs (Level 3) | Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets, foreign currency forward contracts		0
Trading securities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Other current liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		118
Derivative liabilities, foreign currency forward contracts	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	36	33
Derivative liabilities, foreign currency forward contracts	$ 0	$ 0