pre_text: uss abraham lincoln rcoh , the construction preparation contract for cvn-79 john f . kennedy and the inactivation contract for cvn-65 uss enterprise , partially offset by lower volumes on the execution contract for the cvn-71 uss theodore roosevelt rcoh and the construction and engineering contracts for cvn-78 gerald r . ford . higher revenues in fleet support services were primarily the result of volumes associated with repair work on ssn-765 uss montpelier . increased submarines revenues were related to the ssn-774 virginia-class submarine program , primarily driven by higher volumes on block iii boats and the advance procurement contract on block iv boats , partially offset by lower volumes on block ii boats following the delivery of ssn-783 uss minnesota . segment operating income 2014 - newport news operating income in 2014 was $ 415 million , compared to income of $ 402 million in 2013 . the increase was primarily related to the volume changes discussed above and higher risk retirement on the construction contract for cvn-78 gerald r . ford , offset by lower risk retirement on the cvn-71 uss theodore roosevelt rcoh . 2013 - newport news operating income in 2013 was $ 402 million , compared to income of $ 372 million in 2012 . the increase was primarily related to the ssn-774 virginia-class submarine program , driven by risk retirement , performance improvement and the favorable resolution of outstanding contract changes , as well as risk retirement on the execution contract for the cvn-71 uss theodore roosevelt rcoh and the absence in 2013 of the workers' compensation expense adjustment recorded in 2012 , partially offset by the favorable resolution in 2012 of outstanding contract changes on the cvn-65 uss enterprise edsra . revenues at our other segment for the year ended december 31 , 2014 , were $ 137 million , primarily due to the acquisition of upi on may 30 , 2014 . other operating loss for the year ended december 31 , 2014 , was $ 59 million , primarily due to the goodwill impairment charge of $ 47 million described above . backlog total backlog as of december 31 , 2014 , was approximately $ 21 billion . total backlog includes both funded backlog ( firm orders for which funding is contractually obligated by the customer ) and unfunded backlog ( firm orders for which funding is not currently contractually obligated by the customer ) . backlog excludes unexercised contract options and unfunded indefinite delivery/indefinite quantity orders . for contracts having no stated contract values , backlog includes only the amounts committed by the customer . the following table presents funded and unfunded backlog by segment as of december 31 , 2014 and 2013: .
post_text: we expect approximately 28% ( 28 % ) of the $ 21 billion total backlog as of december 31 , 2014 , to be converted into sales in 2015 . u.s . government orders comprised substantially all of the backlog as of december 31 , 2014 and 2013 . awards 2014 - the value of new contract awards during the year ended december 31 , 2014 , was approximately $ 10.1 billion . significant new awards in 2014 included contracts for block iv of the ssn-774 virginia-class submarine program , continued construction preparation for cvn-79 john f . kennedy and construction of nsc-7 kimball . 2013 - the value of new contract awards during the year ended december 31 , 2013 , was approximately $ 9.4 billion . significant new awards in 2013 included contracts for the construction of five ddg-51 arleigh burke-class this proof is printed at 96% ( 96 % ) of original size this line represents final trim and will not print .
table: December 31, 2014 December 31, 2013
table: ($ in millions) Funded Unfunded Total Backlog Funded Unfunded Total Backlog
table: Ingalls $5,609 $1,889 $7,498 $6,335 $2,570 $8,905
table: Newport News 6,158 7,709 13,867 5,495 3,638 9,133
table: Other 65 — 65 — — —
table: Total backlog $11,832 $9,598 $21,430 $11,830 $6,208 $18,038
question: Analyse this data from a financial earnings document. what portion of total backlog is related to newport news segment?