Even though UnitedHealth Group has lost more than $1 billion on individual Obamacare plans, the country's largest health insurer and services company is humming along just fine.

The big numbers: The conglomerate said Tuesday it had $185 billion in revenue in 2016 and expects almost $200 billion this year. That means UnitedHealth, by itself, controls about 5.5% of the U.S. health care economy. UnitedHealth's profit surpassed $7.2 billion, up from $5.8 billion in 2015.

UnitedHealth had a relatively small footprint in the Obamacare marketplaces before bailing on them earlier this year. The company has historically made most of its money from selling health plans to employers, and continues to do so. But Medicare Advantage is representing a larger piece of its pie, and executives expect Medicare membership will continue to grow this year.

But that's not all: Optum, UnitedHealth's subsidiary that sells data analytics and pharmacy benefits and owns providers, is a cash cow. In the fourth quarter, Optum's operating profit actually surpassed the UnitedHealthcare insurance arm. The company invested even more in Optum with its recent $2.3 billion takeover of Surgical Care Affiliates, a chain of surgery centers that specializes in profitable outpatient procedures.

Mum on the future: CEO Stephen Hemsley, known for being tight-lipped, said on an earnings call Tuesday he wouldn't speculate on what will happen to Obamacare, but he noted the company has routinely advocated for affordable coverage and a "simpler, state-based health care system." That could include high-risk pools and more catastrophic coverage with even higher deductibles — policies that Republicans have favored.

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Updated 1 hour ago - Politics & Policy

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State of play: Anxious consumers say financial concerns and health worries will push them to spend less money this year and to do more of their limited spending online.

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California Gov. Gavin Newsom. Photo: Justin Sullivan/Getty Images

California will "independently review" all coronavirus vaccines approved by the Food and Drug Administration before allowing their distribution, Gov. Gavin Newsom (D) announced at a news conference Monday.

Why it matters: The move that comes days after NAID director Anthony Fauci said he had "strong confidence" in FDA-approved vaccines could cast further public doubt that the federal government could release a vaccine based on political motives, rather than safety and efficacy.