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SUPPLEMENTAL CASH FLOW INFORMATION
 12 Months Ended
Dec. 31, 2023
Supplemental Cash Flow Information [Abstract]  
SUPPLEMENTAL CASH FLOW INFORMATION SUPPLEMENTAL CASH FLOW INFORMATION
CASH TRANSACTIONS
Years Ended December 31,
(in millions)202320222021
Interest Paid, Net of Amounts Capitalized$85 $80 $76 
NON-CASH TRANSACTIONS
Other significant non-cash investing and financing activities that resulted in recognition of assets and liabilities but did not result in cash receipts or payments were as follows:
Years Ended December 31,
(in millions)202320222021
Net Cost of Removal Increase (Decrease) (1)
$91 $(49)$(41)
Accrued Capital Expenditures38 26 38 
Renewable Energy Credits3 3 3 
Asset Retirement Obligations Increase (Decrease) (2)
(5)(30)34 
(1)Represents an accrual for future cost of retirement net of salvage values that does not impact earnings. In 2022, TEP reclassified a portion of the Net Cost of Removal related to San Juan to the unrecovered book value of the retiring asset. In September 2023, the Net Cost of Removal reserve was rebalanced as part of the 2023 Rate Order.
(2)TEP retired the San Juan asset retirement cost asset, concurrent with the retirement of San Juan Unit 1 in June 2022.