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SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Cash Flow Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Capital additions | $ 243 | $ 102 | $ 572 | $ 333
Non-cash accruals |  |  | 64 | (89)
Right-of-use assets - finance leases |  |  | 35 | 43
Cash paid for capital expenditures including deposits |  |  | 473 | 379
Taxes paid on income |  |  | 38 | 3
Income tax refunds |  |  | (15) | (119)
Interest paid on debt obligations net of capitalized interest |  |  | 231 | 117
Capitalized interest |  |  | $ 4 | $ 38

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