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Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
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Statement of Financial Position [Abstract] |  |
Allowance for accounts receivable | $ 97 | $ 84
Accumulated depreciation | $ 12,215 | $ 12,212
Common Stock, shares authorized (in shares) | 450 | 450
Common Stock, shares outstanding (in shares) | 286 | 285

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