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Significant Accounting Policies - Additional information (Detail) - USD ($) shares in Millions, $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 17, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Net cash provided by operating activities |  |  | $ 2,446 | $ 2,225 | $ 3,890
Net cash provided by investing activities |  |  | 1,866 | 3,446 | (34,405)
Allowance For Doubtful Accounts Receivable | $ 232 |  | 232 | 232 |
Cash deposited with financially sound European us and Israeli banks and financial institutions | $ 1,845 |  | $ 1,845 |  |
Percentage of consolidated sales in North America |  |  | 48.00% |  |
Shipping and handling costs, which are included in selling and marketing expenses |  |  | $ 159 | 164 | 134
Advertising expense |  |  | 256 | 318 | 312
Ordinary shares issued upon mandatory conversion of preferred shares | 70.6 | 70.6 |  |  |
Accounting Standards Update 2016-15 [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Net cash provided by operating activities |  |  | (1,735) | (1,282) | (1,335)
Net cash provided by investing activities |  |  | 1,735 | 1,282 | 1,335
Accounting Standards Update 2016-01 [Member] | AOCI Attributable to Parent [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
New accounting principle adoption |  |  |  | (5) |
Accounting Standards Update 2016-01 [Member] | Retained Earnings [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
New accounting principle adoption |  |  |  | 5 |
Cost of Sales [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Prior periods adjustments |  |  | 142 | 210 | 206
Selling and Marketing Expenses [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Prior periods adjustments |  |  | $ (142) | $ (210) | $ (206)
Building [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Property plant and equipment useful life |  |  | 40 years |  |
Minimum [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Credit terms to customers |  |  | 30 days |  |
Minimum [Member] | Accounting Standards Update 2016-02 [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Additional operating liabilities expected to be recognized | $ 560 |  | $ 560 |  |
Minimum [Member] | Other Machinery and Equipment [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Property plant and equipment useful life |  |  | 15 years |  |
Minimum [Member] | Other Capitalized Property Plant and Equipment [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Property plant and equipment useful life |  |  | 5 years |  |
Maximum [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Credit terms to customers |  |  | 90 days |  |
Maximum [Member] | Accounting Standards Update 2016-02 [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Additional operating liabilities expected to be recognized | $ 660 |  | $ 660 |  |
Maximum [Member] | Other Machinery and Equipment [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Property plant and equipment useful life |  |  | 20 years |  |
Maximum [Member] | Other Capitalized Property Plant and Equipment [Member] |  |  |  |  |
Depreciation Amortization Impairment [Line Items] |  |  |  |  |
Property plant and equipment useful life |  |  | 10 years |  |

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