Consolidated Balance Sheets (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010
Current assets:
Cash and equivalents	$ 1,437.6	$ 1,525.6	$ 1,322.8
Short-term investments	36.2	22.2	32.8
Accounts receivable, net	1,133.3	972.8	1,106.9
Inventories	285.3	275.1	295.1
Deferred income taxes	281.5	281.2	291.4
Prepaid and other current assets	215.6	297.7	209.7
Total current assets	3,389.5	3,374.6	3,258.7
Prepublication costs, net	304.9	365.0	352.4
Property and equipment, net	488.3	521.3	515.7
Goodwill	2,037.8	1,887.0	1,865.5
Other intangible assets, net	621.3	616.3	608.2
Other non-current assets	311.9	282.4	283.8
Total assets	7,153.7	7,046.6	6,884.3
Current liabilities:
Accounts payable	333.5	391.8	332.6
Accrued royalties	101.1	114.5	103.0
Accrued compensation and contributions to retirement plans	429.4	498.3	415.4
Income taxes currently payable	249.9	22.7	160.3
Unearned revenue	1,244.6	1,204.2	1,124.4
Other current liabilities	401.7	449.8	452.0
Total current liabilities	2,760.2	2,681.3	2,587.7
Long-term debt	1,198.0	1,198.0	1,197.9
Pension and other postretirement benefits	470.0	436.5	493.6
Other non-current liabilities	437.4	439.4	390.6
Total liabilities	4,865.6	4,755.2	4,669.8
Commitments and contingencies (Note 13)
Equity :
Common stock	411.7	411.7	411.7
Additional paid-in capital	147.9	67.0	65.7
Retained income	7,525.1	7,056.6	6,975.5
Accumulated other comprehensive loss	(372.9)	(367.4)	(330.9)
Less: common stock in treasury	(5,503.6)	(4,957.6)	(4,991.9)
Total equity - controlling interests	2,208.2	2,210.3	2,130.1
Total equity - noncontrolling interests	79.9	81.1	84.4
Total equity	2,288.1	2,291.4	2,214.5
Total liabilities and equity	$ 7,153.7	$ 7,046.6	$ 6,884.3