Kenneth L. Bedingfield
Senior Vice President and Chief Financial Officer at L3Harris Technologies
Thanks and good morning, everyone. It's great to be part of the L3Harris team and working alongside Chris. Over the last six weeks, I've been actively engaged with the team, reviewing the business and our financial plan. I'm all in on our approach and grow more confident with each day. We'll be on the road meeting with investors next week and attending a few conferences during the quarter, so I look forward to reengaging with you all over the coming months.
Let's start with consolidated results, which were all in line with our latest guidance. We reported full-year revenue of $19.4 billion at the high end of our guidance, up 14% year-over-year and 6% organically, which was primarily from growth in our Space & Airborne Systems and Communication Systems segments. We delivered segment operating margin of 14.8%, earnings of $12.36 a share, and free cash flow was just over $2 billion.
For the fourth quarter, revenue was $5.3 billion, up 17%, largely driven by the Aerojet Rocketdyne and Tactical Data Links acquisitions and continued strong growth in space systems and resilient communications. Fourth quarter segment margin was 15.1%, up 50 basis points from higher volume and favorable product mix, and better program performance, which all resulted in net positive EAC adjustments, the first net positive quarter since mid-2022. Fourth quarter earnings per share grew 2% to $3.35.
Let me hit on segment results before turning 2024 guidance. SAS reported revenue of $6.8 billion for the year, up 7% as we continue to see strong growth in Space, Mission Networks, and Intel and Cyber programs. I've been impressed with what we're doing in Space. To me, this demonstrates how we are thinking differently, responding quickly, making targeted investments, and seeing them pay off and growing in enduring markets. It's exciting to see how much progress we have made in responsive space where we are taking share. Segment operating margin was 11.4% for the year, down 30 basis points, driven by growth in those early phase space programs. We are now beginning to move into the more mature production phase of these programs as we look to improve margin in 2024.
In IMS, revenue was $6.6 billion for the year, which was roughly flat. Segment operating margin was 11.2%, down 180 basis points from program challenges and lower international mix. I've looked at the changes the team has implemented throughout the year to address these operational challenges and believe that the multipronged approach, including leadership changes, training and maturing programmatic risk management processes will improve the business going forward. We've already seen sequential improvements within the business and expect greater financial stability in 2024.
CS revenue was $5.1 billion, up 20% year-over-year, with 12% organic growth. Beyond the acquisition of TDL, revenue growth was driven by higher volume of Tactical Communication equipment. Segment operating margin was 24.2%, flat year-over-year as higher volumes were offset by lower international mix. I will note that CS had a great Q4 with record operating margin since the merger at 26.1%.
Lastly, Aerojet Rocketdyne revenue was over $1 billion and operating margin was 11.6% for the post-acquisition period. The new leadership team at Aerojet Rocketdyne is working to drive operational improvements to increase throughput of its critical products.
Expanding on Chris' comments, early actions the team has taken include investing in critical suppliers, deploying resources to their sites, improving processes, and co-investing in supplier infrastructure. We look forward to sharing more data with you as we progress on these efforts in 2024.
Turning now to 2024 guidance, which is consistent with the framework that we presented at Investor Day. We expect $20.7 billion to $21.3 billion in revenue with organic growth in all segments. As you fill out your models, I would note that with strong fourth quarter results of CS and some favorable SAS timing, we expect a slower topline growth rate to start the year. IMS and total Company guidance also contemplates the sale of CAS in 2024 with any potential timing impact within the revenue and margin guidance ranges.
Consolidated segment operating margin is anticipated to be approximately 15% from efficiencies gained with increased volume, operational improvements and LHX NeXt cost savings. This is partially offset by a full year of Aerojet Rocketdyne. Throughout the year, margin should gain momentum driven by program ramps, international product mix and accelerating LHX NeXt cost savings.
We do have two non-operational headwinds totaling more than $200 million. First is lower pension income, which we anticipate netting to about $300 million this year. And second, is an anticipated $650 million in interest expense. With taxes and share count, we anticipate non-GAAP EPS to grow to a range of $12.40 to $12.80. We should see it grow rateably across the quarters, ultimately reflecting a sequential build much like we saw in 2023.
We closed out 2023 with solid working capital improvement coming down from elevated levels during the pandemic. The team and I are keenly focused on this as we aim to grow free cash flow over the next several years. For 2024, we expect free cash flow of approximately $2.2 billion, up 10% driven by earnings growth and continued balance sheet efficiency.
At a segment level, we expect SAS revenue of $6.9 billion to $7.1 billion, with operating margin in the mid-to-high 11% range. IMS revenue is anticipated to be $6.4 billion to $6.6 billion, with operating margin in the low-to-mid 11% range, driven by lower than historical international mix. We expect CS revenue of $5.3 billion to $5.4 billion, with operating margin in the low-to-mid 24% range. And for Aerojet Rocketdyne, we anticipate revenue of $2.4 billion to $2.5 billion, and operating margin in the high 11% range.
As Chris mentioned, our capital allocation priority remains focused on: first, paying down debt to achieve a leverage ratio of less than 3.0% and then a shift to returning all excess cash to shareholders through dividends and share repurchases. On the dividend, we continue to target a payout ratio of 35% to 40% of free cash flow. For share repurchases, I will note that we returned over $0.5 billion in 2023, we are targeting a similar amount in 2024 and we look to accelerate buybacks in '25 and 2026.
To close out, one of the reasons I joined L3Harris was my belief that there is tremendous value potential. In my time here, I have gained more confidence that we can deliver on our 2024 and future commitments.
With that, let's open the line for questions. Rob?