{"pre_text": ["the contracts were valued as of april 1 , 2002 , and an asset and a corresponding gain of $ 127 million , net of income taxes , was recorded as a cumulative effect of a change in accounting principle in the second quarter of 2002 .", "the majority of the gain recorded relates to the warrior run contract , as the asset value of the deepwater contract on april 1 , 2002 , was less than $ 1 million .", "the warrior run contract qualifies and was designated as a cash flow hedge as defined by sfas no .", "133 and hedge accounting is applied for this contract subsequent to april 1 , 2002 .", "the contract valuations were performed using current forward electricity and gas price quotes and current market data for other contract variables .", "the forward curves used to value the contracts include certain assumptions , including projections of future electricity and gas prices in periods where future prices are not quoted .", "fluctuations in market prices and their impact on the assumptions will cause the value of these contracts to change .", "such fluctuations will increase the volatility of the company 2019s reported results of operations .", "11 .", "commitments , contingencies and risks operating leases 2014as of december 31 , 2002 , the company was obligated under long-term non-cancelable operating leases , primarily for office rental and site leases .", "rental expense for operating leases , excluding amounts related to the sale/leaseback discussed below , was $ 31 million $ 32 million and $ 13 million in the years ended december 31 , 2002 , 2001and 2000 , respectively , including commitments of businesses classified as discontinued amounting to $ 6 million in 2002 , $ 16 million in 2001 and $ 6 million in 2000 .", "the future minimum lease commitments under these leases are as follows ( in millions ) : discontinued total operations ."], "post_text": ["sale/leaseback 2014in may 1999 , a subsidiary of the company acquired six electric generating stations from new york state electric and gas ( 2018 2018nyseg 2019 2019 ) .", "concurrently , the subsidiary sold two of the plants to an unrelated third party for $ 666 million and simultaneously entered into a leasing arrangement with the unrelated party .", "this transaction has been accounted for as a sale/leaseback with operating lease treatment .", "rental expense was $ 54 million , $ 58 million and $ 54 million in 2002 , 2001 and 2000 , respectively .", "future minimum lease commitments are as follows ( in millions ) : in connection with the lease of the two power plants , the subsidiary is required to maintain a rent reserve account equal to the maximum semi-annual payment with respect to the sum of the basic rent ( other then deferrable basic rent ) and fixed charges expected to become due in the immediately succeeding three-year period .", "at december 31 , 2002 , 2001 and 2000 , the amount deposited in the rent reserve account approximated ."], "table": [["", "total", "discontinued operations"], ["2003", "$ 30", "$ 4"], ["2004", "20", "4"], ["2005", "15", "3"], ["2006", "11", "1"], ["2007", "9", "1"], ["thereafter", "84", "1"], ["total", "$ 169", "$ 14"]], "table_ori": [["", "Total", "Discontinued Operations"], ["2003", "$30", "$4"], ["2004", "20", "4"], ["2005", "15", "3"], ["2006", "11", "1"], ["2007", "9", "1"], ["Thereafter", "84", "1"], ["Total", "$169", "$14"]]}

Question: what was the decrease in rental expense ( millions ) for operating leases in continuing operations from 2003 to 2003?
Evidence:
table_1: the 2003 of total is $ 30 ; the 2003 of discontinued operations is $ 4 ;
text_10: rental expense for operating leases , excluding amounts related to the sale/leaseback discussed below , was $ 31 million $ 32 million and $ 13 million in the years ended december 31 , 2002 , 2001and 2000 , respectively , including commitments of businesses classified as discontinued amounting to $ 6 million in 2002 , $ 16 million in 2001 and $ 6 million in 2000 .
Program: subtract(31, 30)
Answer:
exe_answer: 1