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Investments and Fair Value Measurements - Narrative (Details) |  |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 18, 2021 USD ($) | Apr. 25, 2019 | Apr. 03, 2022 USD ($) fund | Apr. 04, 2021 USD ($) | Mar. 31, 2020 USD ($) | Dec. 29, 2019 USD ($) | Jan. 02, 2022 USD ($) | Feb. 28, 2021 USD ($) | Jan. 02, 2020 USD ($)
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Marketable equity securities |  |  | $ 65,000,000 |  |  |  | $ 107,000,000 |  |
Strategic equity investments, without readily determinable fair values |  |  | 41,000,000 |  |  |  | 40,000,000 |  |
Gain on Helix contingent value right |  |  | 5,000,000 | $ 10,000,000 |  |  |  |  |
Gain on derivative assets related to terminated acquisition |  |  | 0 | 26,000,000 |  |  |  |  |
Pacific Biosciences of California, Inc (PacBio) |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Cash |  |  |  |  | $ 34,000,000 | $ 18,000,000 |  |  |
Business combination, contingent consideration arrangements, maximum outcome |  |  |  |  |  |  |  |  | $ 52,000,000
Equity or debt financing to be raised |  |  |  |  |  |  |  |  | $ 100,000,000
GRAIL Inc |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Contingent value right, terms | 12 years |  |  |  |  |  |  |  |
GRAIL Inc | Payment Rights Of One Billion, Each Twelve Years |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Contingent payment rights, percentage | 2.50% |  |  |  |  |  |  |  |
Business acquisition, contingent value rights, revenue threshold | $ 1,000,000,000 |  |  |  |  |  |  |  |
GRAIL Inc | Payment Rights Of Above One Billion, Each Twelve Years |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Business acquisition, contingent value rights, revenue threshold | $ 1,000,000,000 |  |  |  |  |  |  |  |
Contingent payment rights, second percentage | 9.00% |  |  |  |  |  |  |  |
Helix Holdings I, LLC |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Contingent value right, terms |  | 7 years |  |  |  |  |  |  |
Gain on Helix contingent value right |  |  | $ 5,000,000 | 10,000,000 |  |  |  |  |
Pacific Biosciences of California, Inc (PacBio) | S B Northstar L P |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Business combination, contingent consideration arrangements, maximum outcome |  |  |  |  |  |  |  | $ 52,000,000 |
Gain on derivative assets related to terminated acquisition |  |  |  | 26,000,000 |  |  |  |  |
Pacific Biosciences of California, Inc (PacBio) | S B Northstar L P | Convertible Senior Notes |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Principal amount of notes outstanding |  |  |  |  |  |  |  | $ 900,000,000 |
Venture Capital Investment Fund (the Fund) |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Number of venture capital investment funds | fund |  |  | 2 |  |  |  |  |  |
Equity method investments |  |  | $ 183,000,000 |  |  |  | $ 173,000,000 |  |
Unrealized gain (loss) on investments |  |  | (2,000,000) | 33,000,000 |  |  |  |  |
Venture Capital Investment Fund (the Fund), One |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Commitment in new venture capital investment fund |  |  | 100,000,000 |  |  |  |  |  |
Remaining capital commitment |  |  | 14,000,000 |  |  |  |  |  |
Venture Capital Investment Fund (the Fund), Two |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Commitment in new venture capital investment fund |  |  | 150,000,000 |  |  |  |  |  |
Remaining capital commitment |  |  | 110,000,000 |  |  |  |  |  |
Investee |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |
Revenue from transactions with strategic investees |  |  | $ 30,000,000 | $ 13,000,000 |  |  |  |  |

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