Offsetting of Securities Financing Agreements Substantially all of the Corporation’s securities financing activities are transacted under legally enforceable master repurchase agreements or legally enforceable master securities lending agreements that give the Corporation, in the event of default by the counterparty, the right to liquidate securities held and to offset receivables and payables with the same counterparty.
The Corporation offsets securities financing transactions with the same counterparty on the Consolidated Balance Sheet where it has such a legally enforceable master netting agreement and the transactions have the same maturity date.
The Securities Financing Agreements table presents securities financing agreements included on the Consolidated Balance Sheet in federal funds sold and securities borrowed or purchased under agreements to resell, and in federal funds purchased and securities loaned or sold under agreements to repurchase at December 31, 2015 and 2014.
Balances are presented on a gross basis, prior to the application of counterparty netting.
Gross assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements.
For more information on the offsetting of derivatives, see Note 2 – Derivatives.
The “Other” amount in the table, which is included on the Consolidated Balance Sheet in accrued expenses and other liabilities, relates to transactions where the Corporation acts as the lender in a securities lending agreement and receives securities that can be pledged as collateral or sold.
In these transactions, the Corporation recognizes an asset at fair value, representing the securities received, and a liability, representing the obligation to return those securities.
Gross assets and liabilities in the table include activity where uncertainty exists as to the enforceability of certain master netting agreements under bankruptcy laws in some countries or industries and, accordingly, these are reported on a gross basis.
The column titled “Financial Instruments” in the table includes securities collateral received or pledged under repurchase or securities lending agreements where there is a legally enforceable master netting agreement.
These amounts are not offset on the Consolidated Balance Sheet, but are shown as a reduction to the net balance sheet amount in this table to derive a net asset or liability.
Securities collateral received or pledged where the legal enforceability of the master netting agreements is not certain is not included.
## Table 0 ##
(1) Excludes repurchase activity of $9.3 billion and $5.6 billion reported in loans and leases on the Consolidated Balance Sheet at December 31, 2015 and 2014.
Global Corporate, Global Commercial and Business Banking Global Corporate, Global Commercial and Business Banking each include Business Lending and Global Transaction Services activities.
Business Lending includes various lending-related products and services, and related hedging activities, including commercial loans, leases, commitment facilities, trade finance, real estate lending and asset-based lending.
Global Transaction Services includes deposits, treasury management, credit card, foreign exchange and short-term investment products.
The table below presents a summary of the results, which exclude certain capital markets activity in Global Banking.
## Table 1 ##
Business Lending revenue of $7.6 billion remained relatively unchanged in 2015 compared to 2014 as loan spread compression was offset by the benefit of loan growth.
Global Transaction Services revenue decreased $424 million in 2015 primarily due to lower net interest income as a result of the impact of the allocation of ALM activities, including liquidity costs.
Average loans and leases increased seven percent in 2015 compared to 2014 due to strong origination volumes and increased revolver utilization.
Average deposits remained relatively unchanged in 2015.
Global Investment Banking Client teams and product specialists underwrite and distribute debt, equity and loan products, and provide advisory services and tailored risk management solutions.
The economics of most investment banking and underwriting activities are shared primarily between Global Banking and Global Markets based on the activities performed by each segment.
To provide a complete discussion of our consolidated investment banking fees, the following table presents total Corporation investment banking fees and the portion attributable to Global Banking.
## Table 2 ##
Total Corporation investment banking fees of $5.6 billion, excluding self-led deals, included within Global Banking and Global Markets, decreased eight percent in 2015 compared to 2014 driven by lower debt and equity issuance fees, partially offset by higher advisory fees.
Underwriting fees for debt products declined primarily as a result of lower debt issuance volumes mainly in leveraged finance transactions.
Notes to Consolidated Financial Statements – (continued) (Amounts in Millions, Except Per Share Amounts) Guarantees We have guaranteed certain obligations of our subsidiaries relating principally to operating leases and credit facilities of certain subsidiaries.
The amount of parent company guarantees on lease obligations was $857.3 and $619.4 as of December 31, 2016 and 2015, respectively, and the amount of parent company guarantees primarily relating to credit facilities was $395.6 and $336.5 as of December 31, 2016 and 2015, respectively.
In the event of non-payment by the applicable subsidiary of the obligations covered by a guarantee, we would be obligated to pay the amounts covered by that guarantee.
As of December 31, 2016, there were no material assets pledged as security for such parent company guarantees.
Contingent Acquisition Obligations The following table details the estimated future contingent acquisition obligations payable in cash as of December 31, 2016.

<table><tr><td></td><td colspan="5">December 31, 2015</td></tr><tr><td>(Dollars in millions)</td><td>Gross Assets/Liabilities</td><td>Amounts Offset</td><td>Net Balance Sheet Amount</td><td>Financial Instruments</td><td>Net Assets/Liabilities</td></tr><tr><td>Securities borrowed or purchased under agreements to resell<sup>-1</sup></td><td>$347,281</td><td>$-154,799</td><td>$192,482</td><td>$-144,332</td><td>$48,150</td></tr><tr><td>Securities loaned or sold under agreements to repurchase</td><td>$329,078</td><td>$-154,799</td><td>$174,279</td><td>$-135,737</td><td>$38,542</td></tr><tr><td>Other</td><td>13,235</td><td>—</td><td>13,235</td><td>-13,235</td><td>—</td></tr><tr><td>Total</td><td>$342,313</td><td>$-154,799</td><td>$187,514</td><td>$-148,972</td><td>$38,542</td></tr><tr><td></td><td colspan="5">December 31, 2014</td></tr><tr><td>Securities borrowed or purchased under agreements to resell<sup>-1</sup></td><td>$316,567</td><td>$-124,744</td><td>$191,823</td><td>$-145,573</td><td>$46,250</td></tr><tr><td>Securities loaned or sold under agreements to repurchase</td><td>$326,007</td><td>$-124,744</td><td>$201,263</td><td>$-164,306</td><td>$36,957</td></tr><tr><td>Other</td><td>11,641</td><td>—</td><td>11,641</td><td>-11,641</td><td>—</td></tr><tr><td>Total</td><td>$337,648</td><td>$-124,744</td><td>$212,904</td><td>$-175,947</td><td>$36,957</td></tr></table>
<table><tr><td></td><td colspan="2">Global Corporate Banking</td><td colspan="2">Global Commercial Banking</td><td colspan="2">Business Banking</td><td colspan="2">Total</td></tr><tr><td>(Dollars in millions)</td><td>2015</td><td>2014</td><td>2015</td><td>2014</td><td>2015</td><td>2014</td><td>2015</td><td>2014</td></tr><tr><td>Revenue</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Business Lending</td><td>$3,291</td><td>$3,420</td><td>$3,974</td><td>$3,942</td><td>$342</td><td>$363</td><td>$7,607</td><td>$7,725</td></tr><tr><td>Global Transaction Services</td><td>2,802</td><td>2,992</td><td>2,633</td><td>2,854</td><td>702</td><td>715</td><td>6,137</td><td>6,561</td></tr><tr><td>Total revenue, net of interest expense</td><td>$6,093</td><td>$6,412</td><td>$6,607</td><td>$6,796</td><td>$1,044</td><td>$1,078</td><td>$13,744</td><td>$14,286</td></tr><tr><td>Balance Sheet</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Average</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total loans and leases</td><td>$139,337</td><td>$129,601</td><td>$149,217</td><td>$140,539</td><td>$16,589</td><td>$16,329</td><td>$305,143</td><td>$286,469</td></tr><tr><td>Total deposits</td><td>139,042</td><td>141,386</td><td>122,149</td><td>116,570</td><td>33,545</td><td>30,055</td><td>294,736</td><td>288,011</td></tr><tr><td>Year end</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total loans and leases</td><td>$148,714</td><td>$131,019</td><td>$160,302</td><td>$141,555</td><td>$16,662</td><td>$16,333</td><td>$325,678</td><td>$288,907</td></tr><tr><td>Total deposits</td><td>134,714</td><td>128,730</td><td>127,731</td><td>119,215</td><td>33,722</td><td>31,847</td><td>296,167</td><td>279,792</td></tr></table>
<table><tr><td></td><td colspan="2">Global Banking</td><td colspan="2">Total Corporation</td></tr><tr><td>(Dollars in millions)</td><td>2015</td><td>2014</td><td>2015</td><td>2014</td></tr><tr><td>Products</td><td></td><td></td><td></td><td></td></tr><tr><td>Advisory</td><td>$1,354</td><td>$1,098</td><td>$1,503</td><td>$1,205</td></tr><tr><td>Debt issuance</td><td>1,296</td><td>1,532</td><td>3,033</td><td>3,583</td></tr><tr><td>Equity issuance</td><td>460</td><td>583</td><td>1,236</td><td>1,490</td></tr><tr><td>Gross investment banking fees</td><td>3,110</td><td>3,213</td><td>5,772</td><td>6,278</td></tr><tr><td>Self-led deals</td><td>-57</td><td>-91</td><td>-200</td><td>-213</td></tr><tr><td>Total investment banking fees</td><td>$3,053</td><td>$3,122</td><td>$5,572</td><td>$6,065</td></tr></table>

Question: What's the average of Gross investment banking fees in 2015 and 2014? (in millions)
Answer: 3161.5