Accounts Receivable, Net - Changes in Reserves for Accounts Receivable (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 117.8	$ 76.3	$ 109.8	$ 66.3
Net provision for credit losses	22.7	42.2	68.1	67.8
Charges to other accounts	7.5	10.4	15.4	18.7
Charge-offs	(42.2)	(29.8)	(92.2)	(56.0)
Recoveries of amounts previously charged-off	6.2	2.8	10.7	5.2
Currency translation	0.0	(1.2)	0.2	(1.4)
Balance, end of period	112.0	100.6	112.0	100.6
Mobility
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	102.3	63.9	94.6	55.8
Net provision for credit losses	21.5	42.4	66.3	65.7
Charges to other accounts	7.5	10.2	15.3	18.6
Charge-offs	(41.3)	(29.5)	(90.7)	(55.3)
Recoveries of amounts previously charged-off	6.2	2.8	10.7	5.2
Currency translation	0.0	(0.7)	0.0	(0.8)
Balance, end of period	96.2	89.2	96.2	89.2
Corporate Payments
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	14.4	11.6	14.4	9.9
Net provision for credit losses	1.0	(0.7)	1.4	1.4
Charges to other accounts	0.0	0.2	0.0	0.2
Charge-offs	(0.9)	(0.2)	(1.5)	(0.4)
Recoveries of amounts previously charged-off	0.0	0.0	0.0	0.0
Currency translation	0.0	(0.5)	0.2	(0.7)
Balance, end of period	14.5	10.4	14.5	10.4
Benefits
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	1.1	0.7	0.8	0.6
Net provision for credit losses	0.2	0.5	0.4	0.7
Charges to other accounts	0.0	0.0	0.1	(0.1)
Charge-offs	0.0	(0.1)	0.0	(0.3)
Recoveries of amounts previously charged-off	0.0	0.0	0.0	0.0
Currency translation	0.0	0.0	0.0	0.0
Balance, end of period	$ 1.3	$ 1.0	$ 1.3	$ 1.0