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Basis of presentation (Tables) | 3 Months Ended
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Mar. 31, 2020
Accounting Policies [Abstract] |
Summary of impact of the revision on net revenues and cost of sales in the consolidated statement of income | The following table summarizes the impact of the revision on net revenues and cost of sales in the consolidated statement of income for the relevant period:
|  |  |  |  | Net revenues |  |  | Cost of sales |
|  |  |  |  | As reported |  |  | Adjustment |  |  | As revised |  |  | As reported |  |  | Adjustment |  |  | As revised |
|  |  |  |  | (U.S. $ in millions) |
2019 |  |  | Q1 |  |  |  | 4,295 |  |  |  | (146 | ) |  |  | 4,149 |  |  |  | 2,440 |  |  |  | (146 | ) |  |  | 2,293 |

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- Definition Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794 + Details
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