pre_text: The following table presents the components of the deferred tax assets and liabilities (in millions): As of July 27, 2019, our federal, state, and foreign net operating loss carryforwards for income tax purposes were $676 million, $1 billion, and $756 million, respectively. A significant amount of the net operating loss carryforwards relates to acquisitions and, as a result, is limited in the amount that can be recognized in any one year. If not utilized, the federal, state and foreign net operating loss carryforwards will begin to expire in fiscal 2020. We have provided a valuation allowance of $111 million for deferred tax assets related to foreign net operating losses that are not expected to be realized. As of July 27, 2019, our federal, state, and foreign tax credit carryforwards for income tax purposes were approximately $25 million, $1.1 billion, and $5 million, respectively. The federal tax credit carryforwards will begin to expire in fiscal 2020. The majority of state and foreign tax credits can be carried forward indefinitely. We have provided a valuation allowance of $346 million for deferred tax assets related to state and foreign tax credits that are not expected to be realized.
table: July 27, 2019 July 28, 2018
table: ASSETS
table: Allowance for doubtful accounts and returns . $ 127 $ 285
table: Sales-type and direct-financing leases 176 171
table: Inventory write-downs and capitalization 409 289
table: Investment provisions . — 54
table: IPR&D, goodwill, and purchased intangible assets 1,427 63
table: Deferred revenue . 1,150 1,584
table: Credits and net operating loss carryforwards . 1,241 1,087
table: Share-based compensation expense 164 190
table: Accrued compensation 342 370
table: Other 419 408
table: Gross deferred tax assets 5,455 4,501
table: Valuation allowance (457) (374)
table: Total deferred tax assets . 4,998 4,127
table: LIABILITIES
table: Purchased intangible assets . (705) (753)
table: Depreciation . (141) (118)
table: Unrealized gains on investments . (70) (33)
table: Other (112) (145)
table: Total deferred tax liabilities (1,028) (1,049)
table: Total net deferred tax assets $3,970 $3,078
question: Analyse this data from a financial earnings document. What was the change in Accrued compensation between 2018 and 2019?