Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Operating lease obligations [Abstract]
Lease and rental expense included in costs and expenses	$ 27.0	$ 28.8	$ 81.8	$ 76.4
Litigation matters [Member]
Loss Contingencies [Line Items]
Litigation accruals on an undiscounted basis	$ 5.6		5.6		$ 4.6
Litigation matters [Member] | ETP Lawsuit [Member]
Loss Contingencies [Line Items]
Loss contingency, damages awarded			319.4
Loss contingency, total damages sought			535.8
Loss contingency, disgorgement damages sought			150.0
Prejudgment interest			$ 66.4
Post-judgment interest rate			5.00%