Acquisitions, Disposals, and Related Items	12 Months Ended
Jan. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]
Acquisitions, disposals, and related items	Acquisitions, Disposals and Related Items Other than the jet.com transaction discussed below, the Company completed certain eCommerce acquisitions during fiscal 2018 and 2017, which were immaterial, individually and in the aggregate, to the Company's Consolidated Financial Statements. The following significant transaction primarily impacts the operations of the Company's Walmart U.S. segment: Jet.com, Inc. In September 2016, the Company completed the acquisition of jet.com, a U.S.-based eCommerce company. The integration of jet.com into the Walmart U.S. segment is building upon the current eCommerce foundation, allowing for synergies from talent, logistical operations and access to a broader customer base. The total purchase price for the acquisition was $2.4 billion, net of cash acquired. The allocation of the purchase price includes $1.7 billion in goodwill and $0.6 billion in intangible assets. As part of the transaction, the Company agreed to pay additional compensation of approximately $0.8 billion over a five year period. The following significant transactions impact the operations of the Company's Walmart International segment: Suburbia In April 2017, one of the Company's subsidiaries sold Suburbia, the apparel retail division in Mexico, for $1.0 billion. As part of the sales agreement, the Company is also leasing certain real estate to the purchaser. The sale resulted in a pre-tax gain of $0.7 billion, of which $0.4 billion was recognized in the second quarter of fiscal 2018 in membership and other income, and the remainder was deferred and is being recognized over the lease terms of approximately 20 years. Yihaodian and JD.com, Inc. ("JD") In June 2016, the Company sold certain assets relating to Yihaodian, its eCommerce operations in China, including the Yihaodian brand, website and application, to JD in exchange for Class A ordinary shares of JD representing approximately five percent of JD's outstanding ordinary shares on a fully diluted basis. The $1.5 billion investment in JD is carried at cost and is included in other assets and deferred charges in the accompanying Consolidated Balance Sheets. The sale resulted in the recognition of a $535 million noncash gain, which was included in membership and other income in the accompanying Consolidated Statements of Income. Subsequently, during fiscal 2017, the Company purchased $1.9 billion of additional JD shares classified as available for sale securities, representing an incremental ownership percentage of approximately five percent, for a total ownership of approximately ten percent of JD's outstanding ordinary shares. In fiscal 2016, the Company completed the purchase of all of the remaining noncontrolling interest in Yihaodian for approximately $760 million, using existing cash to complete this transaction.

Acquisitions, Disposals and Related Items

Other than the jet.com transaction discussed below, the Company completed certain eCommerce acquisitions during fiscal 2018 and 2017, which were immaterial, individually and in the aggregate, to the Company's Consolidated Financial Statements.

The following significant transaction primarily impacts the operations of the Company's Walmart U.S. segment:

Jet.com, Inc.

In September 2016, the Company completed the acquisition of jet.com, a U.S.-based eCommerce company. The integration of jet.com into the Walmart U.S. segment is building upon the current eCommerce foundation, allowing for synergies from talent, logistical operations and access to a broader customer base. The total purchase price for the acquisition was $2.4 billion, net of cash acquired. The allocation of the purchase price includes $1.7 billion in goodwill and $0.6 billion in intangible assets. As part of the transaction, the Company agreed to pay additional compensation of approximately $0.8 billion over a five year period.

The following significant transactions impact the operations of the Company's Walmart International segment:

Suburbia

In April 2017, one of the Company's subsidiaries sold Suburbia, the apparel retail division in Mexico, for $1.0 billion. As part of the sales agreement, the Company is also leasing certain real estate to the purchaser. The sale resulted in a pre-tax gain of $0.7 billion, of which $0.4 billion was recognized in the second quarter of fiscal 2018 in membership and other income, and the remainder was deferred and is being recognized over the lease terms of approximately 20 years.

Yihaodian and JD.com, Inc. ("JD")

In June 2016, the Company sold certain assets relating to Yihaodian, its eCommerce operations in China, including the Yihaodian brand, website and application, to JD in exchange for Class A ordinary shares of JD representing approximately five percent of JD's outstanding ordinary shares on a fully diluted basis. The $1.5 billion investment in JD is carried at cost and is included in other assets and deferred charges in the accompanying Consolidated Balance Sheets. The sale resulted in the recognition of a $535 million noncash gain, which was included in membership and other income in the accompanying Consolidated Statements of Income. Subsequently, during fiscal 2017, the Company purchased $1.9 billion of additional JD shares classified as available for sale securities, representing an incremental ownership percentage of approximately five percent, for a total ownership of approximately ten percent of JD's outstanding ordinary shares.

In fiscal 2016, the Company completed the purchase of all of the remaining noncontrolling interest in Yihaodian for approximately $760 million, using existing cash to complete this transaction.