CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 505.6	$ 39.1
Receivables:
Trade, net	105.9	126.2
Other	26.8	31.4
Gas transportation receivables	27.6	8.0
Advances to affiliates	2.7	0.0
Gas stored underground	26.9	26.1
Prepayments	19.7	21.4
Other current assets	5.3	7.1
Total current assets	720.5	259.3
Property, Plant and Equipment:
Natural gas transmission and other plant	12,482.6	12,248.6
Construction work in progress	96.1	239.5
Property, plant and equipment, gross	12,578.7	12,488.1
Less—accumulated depreciation and amortization	4,097.6	3,947.0
Property, plant and equipment, net	8,481.1	8,541.1
Other Assets:
Goodwill	237.4	237.4
Gas stored underground	161.5	114.0
Other	178.1	179.6
Total other assets	577.0	531.0
Total Assets	9,778.6	9,331.4
Payables:
Trade	45.9	31.1
Affiliates	4.5	1.7
Other	21.8	20.3
Gas transportation payables	35.5	20.0
Accrued taxes, other	57.2	65.8
Accrued interest	38.8	32.7
Accrued payroll and employee benefits	27.3	37.4
Construction retainage	13.1	16.6
Regulatory liabilities	54.1	12.7
Current portion of long-term debt	299.9	0.0
Other current liabilities	22.8	21.4
Total current liabilities	620.9	259.7
Long-term debt and finance lease obligation	3,231.7	3,334.5
Other Liabilities and Deferred Credits:
Pension liability	3.5	5.6
Asset retirement obligations	63.8	61.5
Provision for other asset retirement	90.9	88.2
Other	117.6	112.8
Total other liabilities and deferred credits	275.8	268.1
Commitments and Contingencies
Partners' Capital:
Partners' capital	5,721.7	5,541.7
Accumulated other comprehensive loss	(71.5)	(72.6)
Total partners' capital	5,650.2	5,469.1
Total Liabilities and Partners' Capital	$ 9,778.6	$ 9,331.4