jpmorgan chase & co./2015 annual report 73 in advisory fees was driven by the combined impact of a greater share of fees for completed transactions , and growth in industry-wide fees . the increase in equity underwriting fees was driven by higher industry-wide issuance . the decrease in debt underwriting fees was primarily related to lower bond underwriting fees compared with the prior year , and lower loan syndication fees on lower industry-wide fees . principal transactions revenue increased as the prior year included a $ 1.5 billion loss related to the implementation of the funding valuation adjustment ( 201cfva 201d ) framework for over-the-counter ( 201cotc 201d ) derivatives and structured notes . private equity gains increased as a result of higher net gains on sales . these increases were partially offset by lower fixed income markets revenue in cib , primarily driven by credit-related and rates products , as well as the impact of business simplification initiatives . lending- and deposit-related fees decreased compared with the prior year , reflecting the impact of business simplification initiatives and lower trade finance revenue in cib . asset management , administration and commissions revenue increased compared with the prior year , reflecting higher asset management fees driven by net client inflows and higher market levels in am and ccb . the increase was offset partially by lower commissions and other fee revenue in ccb as a result of the exit of a non-core product in 2013 . securities gains decreased compared with the prior year , reflecting lower repositioning activity related to the firm 2019s investment securities portfolio . mortgage fees and related income decreased compared with the prior year , predominantly due to lower net production revenue driven by lower volumes due to higher mortgage interest rates , and tighter margins . the decline in net production revenue was partially offset by a lower loss on the risk management of mortgage servicing rights ( 201cmsrs 201d ) . card income was relatively flat compared with the prior year , but included higher net interchange income due to growth in credit and debit card sales volume , offset by higher amortization of new account origination costs . other income decreased from the prior year , predominantly from the absence of two significant items recorded in corporate in 2013 : gains of $ 1.3 billion and $ 493 million from sales of visa shares and one chase manhattan plaza , respectively . lower valuations of seed capital investments in am and losses related to the exit of non-core portfolios in card also contributed to the decrease . these items were partially offset by higher auto lease income as a result of growth in auto lease volume , and a benefit from a tax settlement . net interest income increased slightly from the prior year , predominantly reflecting higher yields on investment securities , the impact of lower interest expense from lower rates , and higher average loan balances . the increase was partially offset by lower yields on loans due to the run-off of higher-yielding loans and new originations of lower-yielding loans , and lower average interest-earning trading asset balances . the firm 2019s average interest-earning assets were $ 2.0 trillion , and the net interest yield on these assets , on a fte basis , was 2.18% ( 2.18 % ) , a decrease of 5 basis points from the prior year . provision for credit losses year ended december 31 .
based on the information of the firm 2019s average interest-earning assets were $ 2.0 trillion , and the net interest yield on these assets , on a fte basis , of 2.18% ( 2.18 % ) what was the approximate interest income in billions
2015 compared with 2014 the provision for credit losses increased from the prior year as a result of an increase in the wholesale provision , largely reflecting the impact of downgrades in the oil & gas portfolio . the increase was partially offset by a decrease in the consumer provision , reflecting lower net charge-offs due to continued discipline in credit underwriting , as well as improvement in the economy driven by increasing home prices and lower unemployment levels . the increase was partially offset by a lower reduction in the allowance for loan losses . for a more detailed discussion of the credit portfolio and the allowance for credit losses , see the segment discussions of ccb on pages 85 201393 , cb on pages 99 2013101 , and the allowance for credit losses on pages 130 2013132 . 2014 compared with 2013 the provision for credit losses increased by $ 2.9 billion from the prior year as result of a lower benefit from reductions in the consumer allowance for loan losses , partially offset by lower net charge-offs . the consumer allowance reduction in 2014 was primarily related to the consumer , excluding credit card , portfolio and reflected the continued improvement in home prices and delinquencies in the residential real estate portfolio . the wholesale provision reflected a continued favorable credit environment. .