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Income Taxes - Reconciliation of U.S. Federal Statutory Tax Rate to Company's Effective Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income tax provision
Effective tax rate		20.50%	22.00%	16.00%
BPEA Transaction gain (Note 10)	$ 641.9	$ 641.9	$ 0.0	$ 0.0
Unrealized gains		59.9	$ 8.1
EQT AB (“EQT”)
Income tax provision
Equity securities, realized gain		43.8
Unrealized gains		$ 57.9
Controlling Interest
Income tax provision
Statutory U.S. federal tax rate		21.00%	21.00%	21.00%
State income taxes, net of federal benefit		3.50%	3.50%	3.50%
Foreign operations		(1.70%)	(1.70%)	(8.50%)
Compensation plans		0.80%	2.00%	5.80%
Changes in tax laws		0.00%	2.40%	3.00%
Change in valuation allowances		0.30%	1.10%	6.90%
Unrecognized tax benefits		0.40%	0.10%	(1.10%)
BPEA		(1.00%)	0.00%	0.00%
Affiliate divestments		0.00%	0.00%	(6.20%)
Changes in U.S. tax provision to return		0.00%	0.40%	0.80%
Other		0.00%	0.10%	0.40%
Effective tax rate		23.30%	28.90%	25.60%
Non-controlling interests:
Income tax provision
Effect of income from non-controlling interests		(2.80%)	(6.90%)	(9.60%)

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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