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v3.25.2

Balance Sheet (Unaudited) - NWP - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Assets, Current [Abstract] |  |
Cash and cash equivalents | $ 903 | $ 60
Inventory, Net | 335 | 279
Other current assets and deferred charges | 218 | 192
Current assets | 3,221 | 2,661
Property, Plant and Equipment, Gross | 59,391 | 57,395
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment | (19,618) | (18,703)
Property, Plant and Equipment, Net | 39,773 | 38,692
Other Assets, Noncurrent | 1,838 | 1,830
Total assets | 56,141 | 54,532
Liabilities, Current [Abstract] |  |
Accounts payable | 1,414 | 1,613
Other current liabilities | 1,521 | 1,360
Total current liabilities | 6,012 | 5,312
Contingent liabilities and commitments |  |
Members' Equity [Abstract] |  |
Retained Earnings (Accumulated Deficit) | (12,387) | (12,396)
Total liabilities and equity | 56,141 | 54,532
Northwest Pipeline LLC [Member] |  |
Assets, Current [Abstract] |  |
Cash and cash equivalents | 0 | 0
Accounts and Other Receivables, Net, Current | 1 | 2
Inventory, Net | 9 | 9
Regulatory Assets, Current | 4 | 6
Other current assets and deferred charges | 4 | 6
Current assets | 119 | 62
Property, Plant and Equipment, Gross | 4,312 | 4,218
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment | (2,139) | (2,089)
Property, Plant and Equipment, Net | 2,173 | 2,129
Regulatory Assets, Noncurrent | 63 | 49
Other Assets, Noncurrent | 31 | 29
Total assets | 2,386 | 2,269
Liabilities, Current [Abstract] |  |
Accounts Payable, Trade, Current | 45 | 48
Regulatory Liability, Current | 20 | 20
Other current liabilities | 29 | 34
Long-Term Debt, Current Maturities | 85 | 85
Total current liabilities | 187 | 225
Long-Term Debt, Excluding Current Maturities | 498 | 497
Regulatory Liabilities, Noncurrent | 226 | 233
Asset Retirement Obligations, Noncurrent | 148 | 144
Other Liabilities, Noncurrent | 6 | 7
Contingent liabilities and commitments |  |
Members' Equity [Abstract] |  |
Members' Capital | 1,205 | 1,074
Retained Earnings (Accumulated Deficit) | 116 | 89
Total Members' Equity | 1,321 | 1,163
Total liabilities and equity | 2,386 | 2,269
Northwest Pipeline LLC [Member] | Related Party |  |
Assets, Current [Abstract] |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Current | 64 | 0
Liabilities, Current [Abstract] |  |
Accounts payable | 8 | 12
Northwest Pipeline LLC [Member] | Nonrelated Party |  |
Assets, Current [Abstract] |  |
Accounts Receivable, after Allowance for Credit Loss, Current | 37 | 39
Northwest Pipeline LLC [Member] | Affiliated Entity |  |
Liabilities, Current [Abstract] |  |
Accounts payable | $ 0 | $ 26

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