Fair Value Measurements and Financial Instruments (Contingent Consideration Liabilities) (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($)
$ in Millions |
12 Months Ended |
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Jan. 02, 2016 |
Jan. 03, 2015 |
Dec. 28, 2013 |
Dec. 29, 2012 |
| Contingent Consideration Liability [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 151
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$ 50
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$ 195
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$ 0
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| Nanostim [Member] | Contingent Consideration Liability [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 2
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50
|
56
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0
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| Nanostim [Member] | Revenue Based Milestones [Member] | Probability Weighted Discounted Cash Flow [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Discount Rate |
5.00%
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| Probability of Payment |
10.00%
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| Nanostim [Member] | Revenue Based Milestones [Member] | Contingent Consideration Liability [Member] | Probability Weighted Discounted Cash Flow [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 2
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| Thoratec [Member] | Contingent Consideration Liability [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 27
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0
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0
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0
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| Thoratec [Member] | Regulatory and Revenue Based Milestone [Member] | Probability Weighted Discounted Cash Flow [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Discount Rate |
5.50%
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| Thoratec [Member] | Regulatory and Revenue Based Milestone [Member] | Probability Weighted Discounted Cash Flow [Member] | Minimum [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Probability of Payment |
0.00%
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| Thoratec [Member] | Regulatory and Revenue Based Milestone [Member] | Probability Weighted Discounted Cash Flow [Member] | Maximum [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Probability of Payment |
90.00%
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| Thoratec [Member] | Regulatory and Revenue Based Milestone [Member] | Contingent Consideration Liability [Member] | Probability Weighted Discounted Cash Flow [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 27
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| Spinal Modulation [Member] | Contingent Consideration Liability [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 122
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$ 0
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$ 0
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$ 0
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| Spinal Modulation [Member] | Regulatory Based Milestones [Member] | Probability Weighted Discounted Cash Flow [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Discount Rate |
2.10%
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| Probability of Payment |
95.00%
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| Spinal Modulation [Member] | Regulatory Based Milestones [Member] | Contingent Consideration Liability [Member] | Probability Weighted Discounted Cash Flow [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 118
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| Spinal Modulation [Member] | Revenue-Based Milestones and Earn-Outs [Member] | Monte Carlo Simulation [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Probability of Payment |
25.00%
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| Spinal Modulation [Member] | Revenue-Based Milestones and Earn-Outs [Member] | Monte Carlo Simulation [Member] | Minimum [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Discount Rate |
1.30%
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| Spinal Modulation [Member] | Revenue-Based Milestones and Earn-Outs [Member] | Monte Carlo Simulation [Member] | Maximum [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Discount Rate |
17.00%
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| Spinal Modulation [Member] | Revenue-Based Milestones and Earn-Outs [Member] | Contingent Consideration Liability [Member] | Monte Carlo Simulation [Member] |
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| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |
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| Contingent Consideration Liabilities |
$ 4
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