This week, four companies trimmed more than 10,000 jobs, just a fraction of their total workforces. Still, the decisions mark a shift in sentiment inside executive suites, where many leaders have been holding on to workers after struggling to hire and retain them in recent years when the pandemic disrupted workplaces.

Unlike

Microsoft Corp.

and Google parent

Alphabet Inc.,

which announced larger layoffs this month, these companies haven’t expanded their workforces dramatically during the pandemic. Instead, the leaders of these global giants said they were shrinking to adjust to slowing growth, or responding to weaker demand for their products.

“We are taking these actions to further optimize our cost structure,”

Jim Fitterling,

Dow’s chief executive, said in announcing the cuts, noting the company was navigating “macro uncertainties and challenging energy markets, particularly in Europe.”

The U.S. labor market broadly remains strong but has gradually lost steam in recent months. Employers added 223,000 jobs in December, the smallest gain in two years. The Labor Department will release January employment data next week.

Economists from Capital Economics estimate a further slowdown to an increase of 150,000 jobs in January, which would push job growth below its 2019 monthly average, the year before pandemic began.

There is “mounting evidence of weakness below the surface,”

Andrew Hunter,

senior U.S. economist at Capital Economics wrote in a note to clients Thursday.

Last month, the unemployment rate was 3.5%, matching multidecade lows. Wage growth remained strong, but had cooled from earlier in 2022. The Federal Reserve, which has been raising interest rates to combat high inflation, is looking for signs of slower wage growth and easing demand for workers.

Many CEOs say companies are beginning to scrutinize hiring more closely.

Slower hiring has already lengthened the time it takes Americans to land a new job. In December, 826,000 unemployed workers had been out of a job for about 3½ to 6 months, up from 526,000 in April 2022, according to the Labor Department.

“Employers are hovering with their feet above the brake. They’re more cautious. They’re more precise in their hiring,” said

Jonas Prising,

chief executive of

ManpowerGroup Inc.,

a provider of temporary workers. “But they’ve not stopped hiring.”

Additional signs of a cooling economy emerged on Thursday when the Commerce Department said U.S. gross domestic product growth slowed to a 2.9% annual rate in the fourth quarter, down from a 3.2% annual rate in the third quarter.

Not all companies are in layoff mode.

Walmart Inc.,

the country’s biggest private employer, said this week it was raising its starting wages for hourly U.S. workers to $14 from $12, amid a still tight job market for front line workers. Chipotle Mexican Grill Inc. said Thursday it plans to hire 15,000 new employees to work in its restaurants, while plane maker Airbus SE said it is recruiting over 13,000 new staffers this year. Airbus said 9,000 of the new jobs would be based in Europe with the rest spread among the U.S., China and elsewhere. 

General Electric Co.

, which slashed thousands of aerospace workers in 2020 and is currently laying off 2,000 workers from its wind turbine business, is hiring in other areas. “If you know any welders or machinists, send them my way,” Chief Executive

Larry Culp

said this week.

Annette Clayton,

CEO of North American operations at

Schneider Electric SE,

a Europe-headquartered energy-management and automation company, said the U.S. needs far more electricians to install electric-vehicle chargers and perform other tasks. “The shortage of electricians is very, very important for us,” she said.

Railroad CSX Corp. told investors on Wednesday that after sustained effort, it had reached its goal of about 7,000 train and engine employees around the beginning of the year, but plans to hire several hundred more people in those roles to serve as a cushion and to accommodate attrition that remains higher than the company would like.

Freeport-McMoRan Inc.

executives said Wednesday they expect U.S. labor shortages to continue to crimp production at the mining giant. The company has about 1,300 job openings in a U.S. workforce of about 10,000 to 12,000, and many of its domestic workers are new and need training and experience to match prior expertise, President

Kathleen Quirk

told analysts.

“We could have in 2022 produced more if we were fully staffed, and I believe that is the case again this year,” Ms. Quirk said.

The latest layoffs are modest relative to the size of these companies. For example, IBM’s plan to eliminate about 3,900 roles would amount to a 1.4% reduction in its head count of 280,000, according to its latest annual report.

The planned 3,000 job cuts at SAP affect about 2.5% of the business-software maker’s global workforce. Finance chief

Luka Mucic

said the job cuts would be spread across the company’s geographic footprint, with most of them happening outside its home base in Germany. “The purpose is to further focus on strategic growth areas,” Mr. Mucic said. The company employed around 111,015 people on average last year.

Chemicals giant Dow said on Thursday it was trimming about 2,000 employees. The Midland, Mich., company said it currently employs about 37,800 people. Executives said they were targeting $1 billion in cost cuts this year and shutting down some assets to align spending with the macroeconomic environment.

Manufacturer

3M Co.

, which had about 95,000 employees at the end of 2021, cited weakening consumer demand when it announced this week plans to eliminate 2,500 manufacturing jobs. The maker of Scotch tape, Post-it Notes and thousands of other industrial and consumer products said it expects lower sales and profit in 2023.

“We’re looking at everything that we do as we manage through the challenges that we’re facing in the end markets,” 3M Chief Executive

Mike Roman

said during an earnings conference call. “We expect the demand trends we saw in December to extend through the first half of 2023.”

Hasbro Inc.

on Thursday said it would eliminate 15% of its workforce, or about 1,000 jobs, after the toy maker’s consumer-products business underperformed in the fourth quarter.

Some companies still hiring now say the job cuts across the economy are making it easier to find qualified candidates. “We’ve got the pick of the litter,” said

Bill McDermott,

CEO of business-software provider

ServiceNow Inc.

“We have so many applicants.”

At

Honeywell International Inc.,

CEO

Darius Adamczyk

said the job market remains competitive. With the layoffs in technology, though, Mr. Adamczyk said he anticipated that the labor market would likely soften, potentially also expanding the applicants Honeywell could attract.

“We’re probably going to be even more selective than we were before because we’re going to have a broader pool to draw from,” he said.

Across the corporate sphere, many of the layoffs happening now are still small relative to the size of the organizations, said

Denis Machuel,

CEO of global staffing firm Adecco Group AG.

“I would qualify it more as a recalibration of the workforce than deep cuts,” Mr. Machuel said. “They are adjusting, but they are not cutting the muscle.”

Write to Chip Cutter at chip.cutter@wsj.com and Theo Francis at theo.francis@wsj.com