Stock index futures pointed to a slightly lower open for equities on Wall Street on Tuesday, with futures for the S&P 500, the Dow Jones and the Nasdaq 100 down 0.1 to 0.2 percent.

Boeing Co said it has signed its largest ever commercial airplane order with Indonesia's Lion Air in a deal worth $22.4 billion.

ICSC/Goldman Sachs release chain store sales for the week ended February 11 at 1245 GMT. In the previous week, sales rose 1.8 percent.

President Barack Obama and Chinese Vice President Xi Jinping will hold talks on Tuesday that could help boost the international stature of Beijing's leader-in-waiting while testing Obama's ability to balance thorny U.S.-China diplomacy with election-year pressures.

The Commerce Department releases January retail sales at 1330 GMT. Economists expect a 0.7 percent rise compared with a 0.1 percent rise in December. Excluding automobiles, sales are expected to rise 0.5 percent versus a 0.2 percent drop in December.

Apple Inc plans to announce a fourth-generation (4G) version of its iPad in the first week of March, a Wall Street Journal report said, citing a person briefed on the matter. Apple was unavailable for comment outside regular business hours.

The Labor Department releases import-export prices for January at 1330 GMT. Economists in a Reuters survey forecast a 0.2 percent rise in both imports and exports. In the prior month, import prices dropped 0.1 percent and export prices fell 0.5 percent.

At 1355 GMT, Redbook releases its Retail Sales Index of department and chain store sales for February versus January. In the prior period, sales rose 1.2 percent.

India's government is investigating whether local units of U.S. Internet giants Google Inc and Yahoo Inc may have violated the country's foreign exchange laws, the Wall Street Journal reported.

U.S. Commerce Department issues Business Inventories for December at 1500 GMT. Economists expect a rise of 0.5 percent versus a 0.3 percent rise in the prior month.

U.S. and European regulators approved Google Inc's $12.5 billion purchase of Motorola Mobility Holdings Inc and said they would keep a sharp eye on the web search giant to ensure patents critical to the telecommunications industry would be licensed at fair prices.

Texas Instruments Inc has hired Advanced Technology Resource Group to advise on its sale of factories in Japan and the United States, ATREG said.

Avon Products will report quarterly earnings. The market has priced in a profit of 51 cents per share, down from 59 cents per share.

MetLife , the largest life insurance company in the U.S., reports quarterly results, and the market is expecting profits to rise to $1.24 per share from $1.14 per share.

Greece has admitted it still faces a tough job in persuading the European Union and IMF to save it from bankruptcy even after parliament approved savage extra budget cuts, provoking a night of looting and burning in central Athens.

European shares <.FTEU3> fell 0.2 percent after ratings agency Moody's put the United Kingdom's triple-A rating in jeopardy for the first time and warned it may cut France and Austria as well, while downgrading six euro zone nations including Spain and Italy.

U.S. stocks rose on Monday, with the S&P 500 near seven-month highs. The Dow Jones industrial average <.DJI> gained 72.81 points, or 0.57 percent, to 12,874.04. The S&P 500 Index <.INX> gained 9.12 points, or 0.68 percent, to 1,351.76. The Nasdaq Composite <.IXIC> rose 27.51 points, or 0.95 percent, to 2,931.39.

(Reporting by Atul Prakash; Editing by Hans-Juergen Peters)