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Tax Matters (Tables) | 9 Months Ended
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Sep. 30, 2018
Income Tax Disclosure [Abstract] |
Schedule of Tax Provision (Benefit) on Other Comprehensive Income/(Loss) |
The following table provides the components of Tax provision/(benefit) on other comprehensive income/(loss):
|  | Three Months Ended |  | Nine Months Ended
(MILLIONS OF DOLLARS) |  | September 30, 2018 |  |  | October 1, 2017 |  |  | September 30, 2018 |  |  | October 1, 2017 |
Foreign currency translation adjustments, net(a) |  | $ | 14 |  |  | $ | (62 | ) |  | $ | 82 |  |  | $ | (192 | )
Unrealized holding gains/(losses) on derivative financial instruments, net |  | 35 |  |  | 28 |  |  | 39 |  |  | 30 |
Reclassification adjustments for (gains)/losses included in net income |  | (28 | ) |  | (29 | ) |  | 36 |  |  | (169 | )
Reclassification adjustments of certain tax effects from AOCI to Retained earnings(b) |  | — |  |  | — |  |  | 1 |  |  | — |
|  | 7 |  |  | (1 | ) |  | 77 |  |  | (139 | )
Unrealized holding gains/(losses) on available-for-sale securities, net |  | 20 |  |  | 37 |  |  | (8 | ) |  | 93 |
Reclassification adjustments for gains included in net income |  | (6 | ) |  | (49 | ) |  | (8 | ) |  | (45 | )
Reclassification adjustments for tax on unrealized gains from AOCI to Retained earnings(c) |  | — |  |  | — |  |  | (45 | ) |  | — |
|  | 14 |  |  | (12 | ) |  | (62 | ) |  | 47 |
Benefit plans: actuarial gains/(losses), net |  | 2 |  |  | (37 | ) |  | 27 |  |  | (15 | )
Reclassification adjustments related to amortization |  | 15 |  |  | 60 |  |  | 43 |  |  | 152 |
Reclassification adjustments related to settlements, net |  | 10 |  |  | 22 |  |  | 25 |  |  | 30 |
Reclassification adjustments of certain tax effects from AOCI to Retained earnings(b) |  | — |  |  | — |  |  | 637 |  |  | — |
Other |  | 11 |  |  | (33 | ) |  | 18 |  |  | (46 | )
|  | 38 |  |  | 11 |  |  | 750 |  |  | 121 |
Benefit plans: prior service costs and other, net |  | — |  |  | — |  |  | — |  |  | — |
Reclassification adjustments related to amortization |  | (11 | ) |  | (17 | ) |  | (33 | ) |  | (50 | )
Reclassification adjustments related to curtailments, net |  | (1 | ) |  | (1 | ) |  | (4 | ) |  | (5 | )
Reclassification adjustments of certain tax effects from AOCI to Retained earnings(b) |  | — |  |  | — |  |  | (144 | ) |  | — |
Other |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |
|  | (11 | ) |  | (17 | ) |  | (179 | ) |  | (55 | )
Tax provision/(benefit) on other comprehensive income/(loss) |  | $ | 62 |  |  | $ | (80 | ) |  | $ | 667 |  |  | $ | (218 | )
(a) | Taxes are not provided for foreign currency translation adjustments relating to investments in international subsidiaries that will be held indefinitely.
(b) | For additional information on the adoption of a new accounting standard related to reclassification of certain tax effects from AOCI, see Note 1B.
(c) | For additional information on the adoption of a new accounting standard related to financial assets and liabilities, see Note 1B.

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- Definition Schedule of Other Comprehensive Income (Loss), Components of Income Tax Expense (Benefit) [Table Text Block] + References No definition available. + Details
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- References No definition available. + Details
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