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Segments | 12 Months Ended
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Jan. 31, 2018
Segment Reporting Information, Profit (Loss) [Abstract] |
Segments | Segments The Company is engaged in the operation of retail, wholesale and other units, as well as eCommerce websites, located throughout the U.S., Africa, Argentina, Brazil, Canada, Central America, Chile, China, India, Japan, Mexico and the United Kingdom. The Company's operations are conducted in three reportable segments: Walmart U.S., Walmart International and Sam's Club. The Company defines its segments as those operations whose results the chief operating decision maker ("CODM") regularly reviews to analyze performance and allocate resources. The Company sells similar individual products and services in each of its segments. It is impractical to segregate and identify revenues for each of these individual products and services. The Walmart U.S. segment includes the Company's mass merchant concept in the U.S. operating under the "Walmart" or "Wal-Mart" brands, as well as eCommerce. The Walmart International segment consists of the Company's operations outside of the U.S., including eCommerce. The Sam's Club segment includes the warehouse membership clubs in the U.S., as well as samsclub.com. Corporate and support consists of corporate overhead and other items not allocated to any of the Company's segments. The Company measures the results of its segments using, among other measures, each segment's net sales and operating income, which includes certain corporate overhead allocations. From time to time, the Company revises the measurement of each segment's operating income, including any corporate overhead allocations, as determined by the information regularly reviewed by its CODM. When the measurement of a segment changes, previous period amounts and balances are reclassified to be comparable to the current period's presentation. Information for the Company's segments, as well as for Corporate and support, including the reconciliation to income before income taxes, is provided in the following table:
(Amounts in millions) |  | Walmart U.S. |  | Walmart International |  | Sam's Club |  | Corporate and support |  | Consolidated
Fiscal Year Ended January 31, 2018 |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 318,477 |  |  | $ | 118,068 |  |  | $ | 59,216 |  |  | $ | — |  |  | $ | 495,761 |
Operating income (loss) |  | 17,869 |  |  | 5,352 |  |  | 982 |  |  | (3,766 | ) |  | 20,437 |
Interest, net |  |  |  |  |  |  |  |  |  | (2,178 | )
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  | (3,136 | )
Income before income taxes |  |  |  |  |  |  |  |  |  | $ | 15,123 |
Total assets |  | $ | 104,347 |  |  | $ | 81,549 |  |  | $ | 13,418 |  |  | $ | 5,208 |  |  | $ | 204,522 |
Depreciation and amortization |  | 3,655 |  |  | 2,601 |  |  | 466 |  |  | 3,807 |  |  | 10,529 |
Capital expenditures |  | 5,680 |  |  | 2,607 |  |  | 626 |  |  | 1,138 |  |  | 10,051 |
Fiscal Year Ended January 31, 2017 |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 307,833 |  |  | $ | 116,119 |  |  | $ | 57,365 |  |  | $ | — |  |  | $ | 481,317 |
Operating income (loss) |  | 17,745 |  |  | 5,758 |  |  | 1,671 |  |  | (2,410 | ) |  | 22,764 |
Interest, net |  |  |  |  |  |  |  |  |  | (2,267 | )
Income before income taxes |  |  |  |  |  |  |  |  |  | $ | 20,497 |
Total assets |  | $ | 104,262 |  |  | $ | 74,508 |  |  | $ | 14,125 |  |  | $ | 5,930 |  |  | $ | 198,825 |
Depreciation and amortization |  | 3,298 |  |  | 2,629 |  |  | 487 |  |  | 3,666 |  |  | 10,080 |
Capital expenditures |  | 6,090 |  |  | 2,697 |  |  | 639 |  |  | 1,193 |  |  | 10,619 |
Fiscal Year Ended January 31, 2016 |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 298,378 |  |  | $ | 123,408 |  |  | $ | 56,828 |  |  | $ | — |  |  | $ | 478,614 |
Operating income (loss) |  | 19,087 |  |  | 5,346 |  |  | 1,820 |  |  | (2,148 | ) |  | 24,105 |
Interest, net |  |  |  |  |  |  |  |  |  | (2,467 | )
Income before income taxes |  |  |  |  |  |  |  |  |  | $ | 21,638 |
Total assets |  | $ | 103,109 |  |  | $ | 73,720 |  |  | $ | 13,998 |  |  | $ | 8,754 |  |  | $ | 199,581 |
Depreciation and amortization |  | 2,800 |  |  | 2,549 |  |  | 472 |  |  | 3,633 |  |  | 9,454 |
Capital expenditures |  | 6,728 |  |  | 2,930 |  |  | 695 |  |  | 1,124 |  |  | 11,477 |
Total revenues, consisting of net sales and membership and other income, and long-lived assets, consisting primarily of property and equipment, net, aggregated by the Company's U.S. and non-U.S. operations for fiscal 2018, 2017 and 2016, are as follows:
| Fiscal Years Ended January 31,
(Amounts in millions) | 2018 |  | 2017 |  | 2016
Revenues |  |  |  |  |
U.S. operations | $ | 380,580 |  |  | $ | 367,784 |  |  | $ | 357,559 |
Non-U.S. operations | 119,763 |  |  | 118,089 |  |  | 124,571 |
Total revenues | $ | 500,343 |  |  | $ | 485,873 |  |  | $ | 482,130 |
Long-lived assets |  |  |  |  |
U.S. operations | $ | 81,478 |  |  | $ | 82,746 |  |  | $ | 82,475 |
Non-U.S. operations | 33,340 |  |  | 31,432 |  |  | 34,041 |
Total long-lived assets | $ | 114,818 |  |  | $ | 114,178 |  |  | $ | 116,516 |
No individual country outside of the U.S. had total revenues or long-lived assets that were material to the consolidated totals. Additionally, the Company did not generate material total revenues from any single customer.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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