Consolidated Balance Sheets (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2010
Current assets:
Cash and equivalents	$ 1,300.2	$ 1,525.6	$ 1,117.8
Short-term investments	24.8	22.2	26.8
Accounts receivable, net	1,021.3	990.6	994.0
Inventories	340.3	275.1	339.7
Deferred income taxes	281.3	281.7	289.5
Prepaid and other current assets	158.5	199.4	140.2
Total current assets	3,126.4	3,294.6	2,908.0
Prepublication costs, net	351.0	365.0	425.4
Property and equipment, net	526.5	548.8	545.8
Goodwill	1,984.8	1,887.0	1,688.6
Other intangible assets, net	666.7	663.8	520.7
Other non-current assets	288.6	287.4	275.5
Total assets	6,944.0	7,046.6	6,364.0
Current liabilities:
Accounts payable	339.8	396.5	325.0
Accrued royalties	48.5	114.5	48.7
Accrued compensation and contributions to retirement plans	382.7	503.0	342.3
Income taxes currently payable	81.9	23.7	55.1
Unearned revenue	1,246.0	1,205.7	1,144.3
Other current liabilities	424.3	437.5	444.4
Total current liabilities	2,523.2	2,680.9	2,359.8
Long-term debt	1,198.0	1,198.0	1,197.9
Pension and other postretirement benefits	436.5	436.5	501.4
Other non-current liabilities	450.5	439.8	385.0
Total liabilities	4,608.2	4,755.2	4,444.1
Commitments and contingencies (Note 13)
Equity :
Common stock	411.7	411.7	411.7
Additional paid-in capital	134.5	67.0	45.3
Retained income	7,233.0	7,056.6	6,668.8
Accumulated other comprehensive loss	(326.8)	(367.4)	(356.8)
Less: common stock in treasury	(5,197.4)	(4,957.6)	(4,926.1)
Total equity - controlling interests	2,255.0	2,210.3	1,842.9
Total equity - noncontrolling interests	80.8	81.1	77.0
Total equity	2,335.8	2,291.4	1,919.9
Total liabilities and equity	$ 6,944.0	$ 7,046.6	$ 6,364.0