Thank you, Rod. On slide eight, our results were strong this quarter as we reported our highest ever first quarter adjusted operating earnings, excluding unlocking. Our reported fourth quarter adjusted operating earnings per share was $0.77. This included $0.31 of negative DAC/VOBA and other intangibles unlocking, primarily in our Retirement and Individual Life segments. I'll provide more details when we turn to those business lines. Favorable investment performance from our alternatives portfolio supported investment results. We generated $0.05 of combined prepayment and alternative income above our long-term expectations. Our first quarter operating results compare favorably to those of first quarter 2017 when we reported $0.51. Excluding DAC unlocking, we reported $0.49 in first quarter 2017. Within our adjusted operating results, we realized favorable performance from our retained annuities, which lifted corporate results. We expect retained annuities performance to moderate slightly in future quarters. Insurance results were mixed. While we reported improved stock loss and better than expected Group Life rate results, we experienced unfavorable Individual Life mortality. Our first quarter GAAP net income results were supported by a favorable adjustment to the estimated loss on the annuities transaction, which is reported within discontinued operation. We are required to re-measure the estimated loss on sale at the end of each quarter until transaction closing. The favorable adjustment was partially offset by fair value accounting of some of our mortgage securities positioned due to rising rates, as reported in the net realized gains and other category. Importantly, we remain on track to achieve our quarterly adjusted operating earnings target of $1.30 to $1.40 per share within 12 months of closing the Annuities sale. Moving to slide nine. Retirement adjusted operating earnings reached an all-time first quarter high, excluding unlocking. This is primarily driven by a 9% year-over-year increase in both retirement assets under management and defined contribution plan participants, which in turn, generated higher underlying fee income. This growth reflects strong commercial momentum and across markets driven by higher distributed productivity and benefits from our strategic investments. Beginning this quarter, Retirement results now include our Select Advantage investment only product. This product had been part of the Annuities business but is not included in the transaction. Select Advantage results were reported in corporate in 4Q 2017. This product currently includes roughly $6 billion of assets and will continue to be available for sale to customers. The shift had a minimal impact in Retirement's first quarter operating earnings. As we grow assets and the impact of first quarter seasonality rolls off, we expect a larger earnings contribution from Select Advantage in upcoming quarters. Administrative expenses, which are seasonally higher in the first quarter, also included $5 million of strategic investment spending previously reported in corporate. Our unit cost has declined by 9% year-over-year driven by disciplined expense management and the growth that I discussed earlier. As mentioned on the previous slide, we incurred $41 million of DAC/VOBA unlocking, almost all of which related to our guaranteed minimum interest rate initiative. As we have shared over the last several quarters, we have been working with many of our clients to accomplish the following. First, preserve the guaranteed minimum interest rate on existing fixed account balances; second, to new deposits and transfers to a new fixed account with a lower guaranteed minimum interest rate that better aligns with market rates. The accelerated amortization this quarter was driven by a higher level of consent than previously expected, which demonstrates the strength of our customer relationships. Using our new best estimates, we now expect the cumulative and will impact of lower DAC amortization as a result of the GMIR initiative to be $25 million to $30 million annually. This is revised from the previous range of $20 million to $25 million. We have realized to the majority of our run rate benefit from previous GMIR actions. The incremental amortization benefit will emerge over the course of the year as consents go affective. Should future consents exceed our best estimates, more accelerated amortization could emerge, but the majority of this behind us. Turning to net flows. Our small mid-corporate business generated its 18th consecutive quarter of positive flows, despite the merger-driven surrenders, while tax-exempt and stable value experienced some outflows. We expect the second quarter net flows to be in line with those in the first quarter and then improve in the second half of the year. On slide 10, Investment Management produced $61 million of adjusted operating earnings, also our best ever first quarter results for the segment. This growth reflects our expertise in core fixed income and specialty asset classes and solutions, which represent over 50% of our third-party assets under management. Our Investment advisory fees benefited from additional commitments to a new private equity fund that we are raising. Our Investment capital results were favorable, reported by higher carried interest on funds for which we are the general partner and earnings on certain collateralized loan obligations. We earn better than expected performance fees from our collateralized loan obligations as well. Our trailing 12-month operating margin, which 29.1%, excluding investment capital results, which was driven by higher operating scale and continued discretionary expense discipline. Our first quarter net flows, excluding our variable annuity outflows, were affected by redemptions from a non-proprietary real estate retail fund, stable value surrenders and timing of a number of third-party institutional mandates. In the second quarter, for example, we have already closed $660 million CLO, secured a $150 million specialty mortgage fund mandate, and marketed a 400 million euro-denominated CLO that should price shortly. We also plan to close on additional private equity commitments. This activity demonstrates continued strong demand for specialty asset classes and solutions that supports fee margins in our core to our value proposition. Over the last 12 months, about 85% of our institutional sales have been from core fixed income and specialty asset classes and solutions. The fees on inflows have consistently exceeded those for outflows. In the first quarter, the fee differential was six basis points favorable. Strong investment performance is critical to demand for our products and solutions. We continue to excel on this front as approximately 80% of our assets under management outperform benchmark or peer median returns on a five-year basis as of the end of March 2018. Further, the combination of our strong performance and our increased number of consultant ratings will help to build our institutional pipeline of opportunities. As a reminder, the Annuities transaction will lower our net assets by approximately $18 billion, translating into a $35 million annualized pretax earnings impact. However, we'll be the preferred partner for managing the general account assets for Venerable, which will own the variable annuities block posts transaction. As the Venerable team grows their portfolio, we are well-positioned to participate. Turning to slide 11. Employee Benefits reported a 28.3% return on capital, underscoring the high return and capital light nature of this attractive business. First quarter results benefited from improvement in the loss ratio for Stop Loss and better than expected loss ratio for Group Life. Our in-force premium growth was modest as we took additional pricing actions for our Stop Loss business. We continue to believe that pricing action taken over the last several quarters will help return the loss ratio for Stop Loss to our 77% to 80% target range by year end. For example, our underwriting discipline resulted in annual premium increases double those of the prior year. The market, while competitive, remains rational as demonstrated by relatively stable annual premium levels. Our voluntary offerings continue to represent an important growth driver. Voluntary sales rose by 41% year-over-year. On slide 12, Individual Life results were affected by higher mortality following three quarters of favorable mortality. This quarter's mortality results were attributable to both higher frequency and severity. As a result, we incurred $29 million of DAC/VOBA unlocking. We continue to see demand for our Indexed Universal Life policies as we work towards separating the Individual Life business from Annuities. We will have more to share later in the year regarding our strategic review of Individual Life. On slide 13, we provide additional items to consider. Looking ahead to second quarter 2018, we expect lower administrative expenses due to realized net cost savings and the roll-off of seasonally high first quarter items. The impact of lower expenses could be partially offset by certain items not recurring in corporate, which could lead to higher sequential operating loss in that segment. We also point out that market volatility in the first quarter will dampen beginning asset balances for Retirement and Investment Management. While we have provided some items to consider, there will, of course, be other factors that affect second quarter results. Turning to our balance sheet on slide 14, our capital position is strong. Our estimated RBC ratio was 463% at the end of March. Our excess capital, which consists of estimated statutory surplus and holding company liquidity above target was $548 million at the end of the first quarter. We'll be using a portion of that excess capital to execute additional share repurchases in the second quarter. Our quarter end debt to capital ratio was below our 30% target. We repaid maturing five-year senior notes in the first quarter using proceeds from our hybrid debt offering for which rating agency allow us to take partial equity credit. Turning to slide 15. As we celebrate our fifth anniversary of the public company, we're steadfast in our commitment to being good stewards of shareholder capital. As Rod mentioned, we completed the previously announced $500 million accelerated share repurchase in the first quarter. We plan to repurchase another $500 million of shares by the end of the second quarter, which will bring our cumulative share repurchases since our IPO to $4.4 billion. We plan to use the expected proceeds from the sale of our Annuities business towards additional share repurchases. Our expectation remains that proceeds will support $500 million of share repurchases. Since the IPO, our market value has risen by over 70% and we expect to have returned approximately $5 billion of excess capital to shareholders by year end 2018. In summary, our business continued to generate strong operating earnings and targeted returns. We continue to reduce risk and our capital position and balance sheet are strong. With that, I'll turn the call back to the operator so that we can take your questions.