text: corporate costs instead of within \nOther Bets. Additionally, beginning in the first quarter of 2023, we updated and simplified our cost allocation \nmethodologies to provide our business leaders with increased transparency for decision-making . Prior periods have \nbeen recast to reflect the revised presentation and are shown in Recast Historical Segment Results below .\nAs announced on April 20, 2023 , we are bringing together part of Google Research (the Brain Team) and DeepMind \nto significantly accelerate our progress in AI. This change does not affect first quarter reporting. The group, called \nGoogle DeepMind, will be reported within Alphabet's unallocated corporate costs beginning in the second quarter of \n2023.\nQuarter Ended March 31,\n2022 2023\n(recast)\nOperating income (loss):\nGoogle Services $ 21,973 $ 21,737 \nGoogle Cloud  (706)  191 \nOther Bets  (835)  (1,225) \nCorporate costs, unallocated(1) (338)  (3,288) \nTotal income from operations $ 20,094 $ 17,415 \n(1)Hedging gains (losses) related to revenue included in unallocated corporate costs were $278 million  and $84 million  for the \nthree months ended March 31, 2022  and 2023 , respectively. For the three months ended March 31, 2023, unallocated \ncorporate costs include charges related to the reductions in our workforce and office space totaling $2.5 billion . \n2\n\nSegment results\nThe following table presents our segment revenues and operating income (loss) (in millions; unaudited):\nQuarter Ended March 31,\n2022 2023\n(recast)\nRevenues:\nGoogle Services $ 61,472 $