Consolidated Balance Sheets (USD $)	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Current assets:
Cash and equivalents	$ 836,000,000	$ 944,000,000	$ 1,300,000,000
Short-term investments	3,000,000	29,000,000	25,000,000
Accounts receivable, net	1,102,000,000	1,045,000,000	1,002,000,000
Inventories	296,000,000	263,000,000	340,000,000
Deferred income taxes	259,000,000	260,000,000	281,000,000
Prepaid and other current assets	144,000,000	138,000,000	255,000,000
Total current assets	2,640,000,000	2,679,000,000	3,203,000,000
Prepublication costs, net	342,000,000	325,000,000	351,000,000
Property and equipment, net	482,000,000	500,000,000	501,000,000
Goodwill	2,296,000,000	2,048,000,000	1,985,000,000
Other intangible assets, net	1,267,000,000	608,000,000	620,000,000
Other non-current assets	283,000,000	267,000,000	284,000,000
Total assets	7,310,000,000	6,427,000,000	6,944,000,000
Current liabilities:
Accounts payable	232,000,000	347,000,000	336,000,000
Accrued royalties	50,000,000	119,000,000	48,000,000
Accrued compensation and contributions to retirement plans	385,000,000	510,000,000	380,000,000
Short-term debt	400,000,000	400,000,000	0
Income taxes currently payable	111,000,000	29,000,000	82,000,000
Unearned revenue	1,323,000,000	1,303,000,000	1,244,000,000
Other current liabilities	378,000,000	422,000,000	433,000,000
Total current liabilities	2,879,000,000	3,130,000,000	2,523,000,000
Long-term debt	799,000,000	798,000,000	1,198,000,000
Pension and other postretirement benefits	494,000,000	513,000,000	436,000,000
Other non-current liabilities	616,000,000	402,000,000	451,000,000
Total liabilities	4,788,000,000	4,843,000,000	4,608,000,000
Commitments and contingencies (Note 14)	0	0	0
Redeemable noncontrolling interest (Note 10)	792,000,000	0	0
Equity:
Common stock	412,000,000	412,000,000	412,000,000
Additional paid-in capital	442,000,000	94,000,000	134,000,000
Retained income	7,292,000,000	7,667,000,000	7,233,000,000
Accumulated other comprehensive loss	(424,000,000)	(425,000,000)	(327,000,000)
Less: common stock in treasury	(6,059,000,000)	(6,240,000,000)	(5,197,000,000)
Total equity - controlling interests	1,663,000,000	1,508,000,000	2,255,000,000
Total equity - noncontrolling interests	67,000,000	76,000,000	81,000,000
Total equity	1,730,000,000	1,584,000,000	2,336,000,000
Total liabilities and equity	$ 7,310,000,000	$ 6,427,000,000	$ 6,944,000,000