Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Allowance for bad debt	$ 0.3	$ 0.3
Property and equipment, accumulated depreciation	4,570.4	4,332.0
Intangible assets, accumulated amortization	$ 859.8	$ 795.1
Members’ equity:
Common units issued (in shares)	479,825,804	484,277,258
Common units outstanding (in shares)	484,277,258	479,825,804
Accounts payable to related party	$ 5.7	$ 1.6

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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