David Keffer
Corporate Vice President & Chief Financial Officer at Northrop Grumman
Okay. Thanks, Kathy, and good morning, everyone. I'll begin my comments with Third Quarter highlights on slide 3. We continued to generate strong operating results, delivering another quarter of solid organic sales growth, higher segment operating margin rate, and outstanding earnings per share, and transaction adjusted free cash flow. We continued to return cash to shareholders through our buyback program and quarterly dividend, returning over $800 million in the quarter. Slide 4 provides a bridge between third quarter 2020, and third quarter 2021 sales. Excluding sales from the IT services divestiture, our organic growth was three percent. This rate was below our first half growth due in part to the broader labor market and supply chain trends that Kathy outlined.
Next, I will review our earnings per share results on Slide 5 compared to the Third Quarter of 2020, our EPS increased 13% to $6.63. Strong segment operational performance contributed about $0.14 of growth and lower corporate unallocated added another $0.55. This included a $60 million benefit from insurance settlements related to shareholder litigation involving the former Orbital ATK business prior to our acquisition. Corporate on allocated expense also decreased due to a change in deferred state income taxes, as well as lower intangible asset amortization and PP&E step-up depreciation. Pension costs contributed $0.17 of growth driven by higher non-service FAS income. Our marketable securities performance represented a headwind of $0.17 compared to the third quarter of 2020, which benefited from particularly strong equity markets.
Lastly, we experienced a slightly higher federal tax rate in the period due to lower benefits from foreign derived Intangible Income. Turning to sector results on slide six, we saw some broad-based COVID -related impact. The most significant of which were in our Aeronautics sector. Aeronautics sales declined 6% for the quarter. Year-to-date it's sales are down 1%. As we've described in recent quarters, several programs in our AS portfolio are plateaus, or entering a phase of their life cycle where you would not expect to see growth. This quarter, we experienced slightly lower volume across the portfolio, including restricted efforts. F-35, B2B, DMS, and Global Hawk programs. We expect this overall trend to continue at AS in 2022, which we'll discuss in more detail momentarily. At defense systems, sales decreased by 24% in the quarter and 22% year-to-date.
On an organic basis, sales were down roughly 2% in the quarter and year-to-date periods driven by the completion of our activities on the Lake City, small-caliber ammunition contract last year. Lake City represented a sales headwind of roughly $75 million in the quarter and $335 million year-to-date. This was partially offset by higher volume on several mission readiness programs. Mission Systems sales were down 5% in the quarter, and up 4% year-to-date. Organically, MS sales increased 1% in Q3, and year-to-date, they're up a robust 9%. As we've noted previously, the timing of material volume at MS has been weighted more towards the first half of 2021 than the second. Organic sales growth in the third quarter and year-to-date periods was broad-based across programs such as Gator, J Crew, and various restricted efforts.
Finally, based systems continues to deliver outstanding sales growth, increasing 22% in the third quarter and 28% year-to-date. Sales in both business areas were higher in the quarter and year-to-date periods, reflecting continued ramp-up on GBSD and NGI, as well as higher volume unrestricted programs and Artemis. Turning to Segment Operating income and Margin rate on slide 7, we delivered another quarter of excellent performance, with segment operating margin rate at 11.9%. Aeronautics Third Quarter operating income decreased 10% due to lower sales volume and a $42 million unfavorable EAC adjustment on the F-35 program. The adjustment was driven by labor-related production inefficiencies, reflecting COVID related impacts on the program.
The AS Operating margin rate decreased to 9.7% in Q3 as a result of this adjustment, with year-to-date operating margin slightly ahead of last year at 10.1%. Defense Systems operating income decreased by 19% in the quarter and 16% year-to-date, largely due to the impact of the IT services divestiture. Operating margin rate increased to 12.4% in the quarter and 12 percent year-to-date, largely driven by improved performance in contract mix, in battle management and missile systems, partially offset by lower net favorable EAC adjustments. At mission systems, operating income was relatively flat in the quarter and up 10% year-to-date, third quarter operating margin rate improved to 15.3% in year-to-date was 15.5%, reflecting strong program performance and changes in business mix as a result of the IT services divestiture. Space Systems operating income rose 29% in the quarter, and 36% year-to-date, driven by higher sales volume.
Operating margin rate was also higher at 10.7% in the quarter and 10.9% year-to-date, driven by higher net favorable EAC adjustments. Moving to sector guidance on slide 8, note that this outlook assumes a relatively consistent level of impact in Q4 with what we've been experiencing so far this year from the effects of COVID on the workforce and supply chain. And it does not include any potential financial impacts on the Company related to the vaccine mandate. We have updated our 2021 sales estimates for each segment based on our year-to-date results and current expectations for Q4. For operating margin rate, we're increasing our guidance at defense and Space, and the margin rates at AS and MS remain unchanged.
Before we get to our consolidated guidance, I'd also like to take a moment to discuss some of the factors to consider in comparing our fourth-quarter revenue to last year on Slide 9. In Q4 of 2020, the IT services business contributed almost $600 million of sales and the equipment sale at AS generated over $400 million. Q4 of 2021 also has 4 fewer working days than the same period in 2020, representing a headwind of about 6%. Adjusting for these 3 items, our Q4 2021 sales would grow at 3% to percent based on our latest full-year guidance. Moving to slide 10. Based on what we now see, we expect sales of approximately $36 billion.
We're raising our 2021 outlook for segment and total operating margin and for EPS. Our segment operating margin rate guidance is 10 basis points higher at 11.7% to 11.9%, reflecting our continued strong performance. Our net FAS/CAS, pension adjustment has increased $60 million for the full year. As a result of the annual demographic update we performed in Q3. Other corporate unallocated costs are $70 million below our previous guidance. Now at approximately $120 million for the year. As I mentioned, our corporate unallocated costs benefited from a $60 million insurance settlement in Q3, as well as additional benefits from state taxes.
These updates translate into an increase of 50 basis points in our operating margin rate to a range of 16% to 16.2% in our updated guidance. Remember that the gain from the IT services divestiture in Q1 contributed approximately 5 percentage points of overall operating margin benefit for the full year. We continue to project the 2021 effective federal tax rate in the high 17% range, excluding the effects of the divestiture, which is consistent with our prior guidance. Lastly, we're raising our EPS guidance, which we'll cover on Slide 11. Segment performance is contributing about $0.15 of the increase, with the benefits to corporate on allocated and pension contributing the remainder.
In total, this represents an $0.80 improvement in our transaction adjusted EPS guidance. With this latest increase our 2021 EPS guidance is up by about $2 since our initial guidance in the beginning of the year. Before we move to 2022, I wanted to give you an update on our cash performance. Year-to-date, we have generated over $2.1 billion of transaction adjusted free cash flow up 15 percent compared to 2020. And we ended the quarter with over $4 billion in cash on the balance sheet. Keep in mind that we have a roughly $200 million payroll tax payment in Q4 from the Cares Act legislation.
With the second similar payment in 2022. Additionally, we expect to pay the balance of our transaction-related tax from the IT services divestiture in the fourth quarter. Our healthy cash position has enabled us to repurchase over $2.7 billion of stocks so far this year, on track with our full-year target of $3 billion or more. As we look ahead to 2022 on slide 12, our outlook is based on the same set of assumptions that we described for 2021 guidance, regarding the COVID environment and vaccine mandate. It also assumes that the continuing resolution does not extend beyond 2021, and like our 2021 guidance, it assumes that we do not experience a b reach of the debt ceiling.
We expect space to be our fastest-growing segment again in 2022, driven by GBSD, NGI and several restricted efforts as they continue to ramp. Mission Systems and Defense Systems should also produce organic growth. Regarding Aeronautics Systems, after several years of strong growth, our latest 2021 sales guidance calls for a mid-single-digit decline. And we see that trend continuing in 2022. We've talked in recent quarters about the headwinds in our hail portfolio. We're also projecting lower sales on Jay stars, F/A-18, as well as our restricted portfolio. Looking further to the future, it's an exciting decade for defense aerospace. Rapidly evolving threats are sparing a new wave of all-time this vehicle, and 6th-generation fighter development.
So the opportunity set in AS remains solid. And we will continue to invest in the cutting-edge technologies that allow our customers to stay ahead of the threat environment. Altogether, we currently expect 2022 sales at the Company level to reflect continued organic growth. Looking at segment margin, we expect the strong results we've demonstrated in 2021 to continue in 2022 with excellent program performance, offsetting a portion of the 20 to 30 basis point benefit we generated from pension-related overhead rate changes in Q1 of 2021. While we project higher sales and strong segment operating margin, we expect transaction adjusted earnings per share to be down next year as a result of several non-operational headwinds. Lower CAS pension recoveries, and higher corporate unallocated expenses are currently projected to create an EPS headwind next year of more than $2.
For FAS pension, our outlook for 2022 will depend on our updated actuarial assumptions, including discount rates and plan asset returns, which we will determine at the end of the year. Earnings per share driven from sales growth, strong operating margin performance, and lower share count will help to offset these non-operational items. Next, I'd like to spend a moment discussing cash. We expect relatively stable cash flow at the program level in 2022. But there are a few temporal items that should be factored into the year-over-year comparison of overall free cash flow. First is lower CAS pension recoveries. As you can see on Slide 13, our CAS recoveries are currently expected to be lower by $350 million next year.
The second is cash taxes. Excluding the impact of the IT services transaction we expect cash taxes to be modestly higher next year. In addition, as we've noted in the past, current tax law would require companies to amortize costs, so we're 5 years starting in 2022, which would increase our cash taxes by around $1 billion next year in smaller amounts in subsequent years. There continues to be uncertainty in the tax environment with potential new legislation that could change the R&D amortization provision and other provisions. We will provide updates on each of these items on our January call.
Taking all of these cash flow factors into consideration, we would expect to decline in 2022 transaction adjusted free Cash Flow, followed by a double-digit growth CAGR through 2024, driven by strong operational performance. Regarding capital deployment, investing in the business through disciplined R&D and capital spending continues to be our priority. We expect capex to be roughly flat next year in absolute dollar terms. We believe these investments allow us to stay at the forefront of technology as we invest in our business. As we've said, we continue to expect to return the majority of our 2022 free cash flow to shareholders through dividends and share repurchases.
With that, I will turn the call back over to you, Kathy.