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Tax Matters - Schedule of Tax Provision/(Benefit) on Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 28, 2025 | Sep. 29, 2024 | Sep. 28, 2025 | Sep. 29, 2024
Income Tax Disclosure [Abstract] |  |  |  |  |
Foreign currency translation adjustments, net | [1] | $ 34 | $ (50) | $ (338) | $ (7)
Unrealized holding gains/(losses) on derivative financial instruments, net |  | (2) | (65) | (84) | 5
Reclassification adjustments for (gains)/losses included in net income |  | 32 | (42) | (55) | (68)
Derivatives qualifying as hedges, tax, total |  | 30 | (107) | (139) | (63)
Unrealized holding gains/(losses) on available-for-sale securities, net |  | (1) | 7 | 16 | (2)
Reclassification adjustments for (gains)/losses included in net income |  | (12) | (1) | (3) | 10
Available-for-sale securities, tax, total |  | (13) | 7 | 12 | 8
Reclassification adjustments related to amortization of prior service costs and other, net |  | (4) | (6) | (17) | (20)
Reclassification adjustments related to curtailments of prior service costs and other, net |  | (1) | 0 | (11) | 1
Pension and other postretirement benefit plans, net prior service cost (credit), tax |  | (5) | (6) | (28) | (18)
Tax provision/(benefit) on other comprehensive income/(loss) |  | $ 45 | $ (157) | $ (492) | $ (81)
[1] | Taxes are not provided for foreign currency translation adjustments relating to investments in international subsidiaries that are expected to be held indefinitely.

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- Definition Amount, after adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-12 + Details
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