Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Consolidated net loss from continuing operations	$ (157.5)	$ (52.7)
Income from discontinued operations, net of tax	0.0	1,068.5
Adjustments to reconcile consolidated net loss to net cash used for operating activities:
Gain on sale of U.S. Federal business	0.0	(1,059.5)
Foreign currency translation losses	2.9	15.8
Non-cash interest expense	0.9	1.5
Employee stock compensation	3.3	5.1
Depreciation and amortization of properties	7.6	8.2
Depreciation and amortization of outsourcing assets	16.1	16.0
Amortization of marketable software	15.5	13.6
Other non-cash operating activities	(0.6)	0.2
Loss on disposal of capital assets	0.8	0.8
Postretirement contributions	(21.6)	(327.7)
Postretirement expense	169.0	23.5
Deferred income taxes, net	(2.0)	(5.6)
Changes in operating assets and liabilities
Receivables, net and contract assets	48.8	(18.6)
Inventories	3.7	5.6
Other assets	(15.2)	(14.2)
Accounts payable and current liabilities	(124.8)	(58.0)
Other liabilities	10.2	(0.4)
Net cash used for operating activities	(42.9)	(377.9)
Cash flows from investing activities
Net proceeds from sale of U.S. Federal business	0.0	1,164.7
Proceeds from investments	1,229.5	828.8
Purchases of investments	(1,235.5)	(870.5)
Investment in marketable software	(17.4)	(17.3)
Capital additions of properties	(5.1)	(5.6)
Capital additions of outsourcing assets	(5.0)	(4.8)
Other	(0.4)	(1.5)
Net cash (used for) provided by investing activities	(33.9)	1,093.8
Cash flows from financing activities
Net proceeds from short-term borrowings	0.0	59.5
Proceeds from issuance of long-term debt	1.5	2.1
Payments of long-term debt	(91.6)	(6.1)
Proceeds from exercise of stock options	2.7	0.0
Other	(7.4)	(4.7)
Net cash (used for) provided by financing activities	(94.8)	50.8
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(8.6)	(31.0)
Increase (decrease) in cash, cash equivalents and restricted cash	(180.2)	735.7
Cash, cash equivalents and restricted cash, beginning of period	906.7	551.8
Cash, cash equivalents and restricted cash, end of period	$ 726.5	$ 1,287.5