pre_text: The following tabl e reconciles total operating segment revenues to total revenues as well as total operating segment margin to income before provision for income taxes: (1) Cloud and license revenues presented for management reporting included revenues related to cloud and license obligations that would have otherwise been recorded by the acquired businesses as independent entities but were not recognized in our consolidated statements of operations for the periods presented due to business combination accounting requirements. See Note 9 for an explanation of these adjustments and this table for a reconciliation of our total operating segment revenues to our total revenues as reported in our consolidated statements of operations.
table: Year Ended May 31,
table: (in millions) 2019 2018 2017
table: Total revenues for operating segments $39,526 $39,430 $37,963
table: Cloud and license revenues (1) (20) (47) (171)
table: Total revenues $39,506 $39,383 $37,792
table: Total margin for operating segments $23,981 $23,857 $23,208
table: Cloud and license revenues (1) (20) (47) (171)
table: research and development (6,026) (6,084) (6,153)
table: General and administrative (1,265) (1,282) (1,172)
table: Amortization of intangible assets (1,689) (1,620) (1,451)
table: Acquisition related and other (44) (52) (103)
table: restructuring (443) (588) (463)
table: Stock-based compensation for operating segments (518) (505) (415)
table: Expense allocations and other, net (441) (415) (367)
table: Interest expense (2,082) (2,025) (1,798)
table: Non-operating income, net 815 1,185 565
table: Income before provision for income taxes $12,268 $12,424 $11,680
question: Analyse this data from a financial earnings document. How much more was spent on interest expense than on stock-based compensation for operating segments in 2018?