Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Consolidated net income (loss)	$ (13.3)	$ 78.9	$ (66.6)
Adjustments to reconcile consolidated net income (loss) to net cash provided by operating activities:
Foreign currency transaction losses	11.0	7.4	21.7
Non-cash interest expense	9.2	10.5	9.5
Loss on debt exchange / extinguishment	20.1	0.0	1.5
Employee stock compensation	13.2	13.2	11.2
Depreciation and amortization of properties	35.3	40.4	39.7
Depreciation and amortization of outsourcing assets	63.8	66.8	53.7
Amortization of marketable software	48.3	56.9	63.1
Other non-cash operating activities	(1.6)	(4.8)	3.2
Loss on disposal of capital assets	1.5	0.8	5.0
Gain on sale of properties	0.0	(7.3)	0.0
Postretirement contributions	(109.4)	(138.7)	(150.6)
Postretirement expense	96.6	84.1	98.1
Decrease in deferred income taxes, net	4.4	8.2	3.4
Changes in operating assets and liabilities:
Receivables, net	(8.3)	(50.5)	5.9
Inventories	6.1	(5.5)	4.1
Other assets	9.9	(23.9)	(27.5)
Accounts payable and other accrued liabilities	(114.4)	(62.2)	48.6
Other liabilities	51.5	(0.4)	42.4
Net cash provided by operating activities	123.9	73.9	166.4
Cash flows from investing activities
Proceeds from investments	3,568.9	3,708.0	4,717.2
Purchases of investments	(3,566.1)	(3,722.0)	(4,692.4)
Capital additions of properties	(38.0)	(35.6)	(25.8)
Capital additions of outsourcing assets	(48.8)	(73.0)	(86.3)
Investment in marketable software	(73.0)	(80.7)	(64.4)
Net proceeds from sale of properties	(0.3)	19.2	0.0
Other	(0.9)	(0.9)	(0.8)
Net cash used for investing activities	(158.2)	(185.0)	(152.5)
Cash flows from financing activities
Cash paid in connection with debt exchange	(56.7)	0.0	0.0
Proceeds from capped call transactions	7.2	0.0	0.0
Payments of long-term debt	(14.4)	(2.3)	(107.5)
Financing fees	0.0	(0.2)	(1.1)
Proceeds from issuance of long-term debt	30.5	0.0	452.9
Issuance costs relating to long-term debt	0.0	0.0	(12.1)
Other	(4.6)	(2.3)	(2.3)
Net cash (used for) provided by financing activities	(38.0)	(4.8)	329.9
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0.0	(24.1)	19.2
(Decrease) increase in cash, cash equivalents and restricted cash	(72.3)	(140.0)	363.0
Cash, cash equivalents and restricted cash, beginning of year	624.1	764.1	401.1
Cash, cash equivalents and restricted cash, end of year	$ 551.8	$ 624.1	$ 764.1