impairment of long-lived assets based on the projection of undiscounted cash flows whenever events or changes in circumstances indicate that the carrying amounts of such assets may not be recoverable .
in the event such cash flows are not expected to be sufficient to recover the recorded value of the assets , the assets are written down to their estimated fair values ( see note 5 ) .
asset retirement obligations 2014effective january 1 , 2003 , the company adopted statement of financial accounting standards ( 2018 2018sfas 2019 2019 ) no .
143 , 2018 2018accounting for asset retirement obligations . 2019 2019 sfas no .
143 requires the company to record the fair value of a legal liability for an asset retirement obligation in the period in which it is incurred .
when a new liability is recorded the company will capitalize the costs of the liability by increasing the carrying amount of the related long-lived asset .
the liability is accreted to its present value each period and the capitalized cost is depreciated over the useful life of the related asset .
upon settlement of the liability , the company settles the obligation for its recorded amount or incurs a gain or loss upon settlement .
the company 2019s retirement obligations covered by sfas no .
143 include primarily active ash landfills , water treatment basins and the removal or dismantlement of certain plant and equipment .
as of december 31 , 2003 and 2002 , the company had recorded liabilities of approximately $ 29 million and $ 15 million , respectively , related to asset retirement obligations .
there are no assets that are legally restricted for purposes of settling asset retirement obligations .
upon adoption of sfas no .
143 , the company recorded an additional liability of approximately $ 13 million , a net asset of approximately $ 9 million , and a cumulative effect of a change in accounting principle of approximately $ 2 million , after income taxes .
amounts recorded related to asset retirement obligations during the years ended december 31 , 2003 were as follows ( in millions ) : .

Balance at December 31, 2002
$15
Additional liability recorded from cumulative effect of accounting change
13
Accretion expense
2
Change in the timing of estimated cash flows
(1)
Balance at December 31, 2003
$29

proforma net ( loss ) income and ( loss ) earnings per share have not been presented for the years ended december 31 , 2002 and 2001 because the proforma application of sfas no .
143 to prior periods would result in proforma net ( loss ) income and ( loss ) earnings per share not materially different from the actual amounts reported for those periods in the accompanying consolidated statements of operations .
had sfas 143 been applied during all periods presented the asset retirement obligation at january 1 , 2001 , december 31 , 2001 and december 31 , 2002 would have been approximately $ 21 million , $ 23 million and $ 28 million , respectively .
included in other long-term liabilities is the accrual for the non-legal obligations for removal of assets in service at ipalco amounting to $ 361 million and $ 339 million at december 31 , 2003 and 2002 , respectively .
deferred financing costs 2014financing costs are deferred and amortized over the related financing period using the effective interest method or the straight-line method when it does not differ materially from the effective interest method .
deferred financing costs are shown net of accumulated amortization of $ 202 million and $ 173 million as of december 31 , 2003 and 2002 , respectively .
project development costs 2014the company capitalizes the costs of developing new construction projects after achieving certain project-related milestones that indicate the project 2019s completion is probable .
these costs represent amounts incurred for professional services , permits , options , capitalized interest , and other costs directly related to construction .
these costs are transferred to construction in progress when significant construction activity commences , or expensed at the time the company determines that development of a particular project is no longer probable ( see note 5 ) . .

Question: Analyse this data from a financial earnings document. what was the difference in millions in liabilities related to asset retirement obligations between 2003 and 2003?
Choices:
44
28
14.0
406
-14
Correct choice index: 2