Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
ASSETS
Trade, net of allowance for bad debt of $0.1 and $0.3, respectively	$ 0.1	$ 0.3
Property and equipment, net of accumulated depreciation of $4,774.5 and $4,332.0, respectively	4,774.5	4,332.0
Intangible assets, net of accumulated amortization of $923.6 and $795.1, respectively	$ 923.6	$ 795.1
Members’ equity:
Common units issued (in shares)	468,980,630	484,277,258
Common units outstanding (in shares)	468,980,630	484,277,258
Accounts payable, related parties	$ 2.5	$ 1.6