Calculate the taxable income for AT&T Inc. for the fiscal year ending December 31, 2023, using the following financial figures:

• Total Revenue: $1,000,000,000
• Cost of Goods Sold: $450,000,000
• Operating Expenses: $300,000,000
• Depreciation Expense: $40,000,000
• Interest Expense: $20,000,000
• Tax Rate: 18%