Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating Activities:
Net earnings	$ 1,181,000,000	$ 935,000,000
Adjustments to reconcile net earnings to net cash flow provided by (used for) operating activities:
Depreciation and amortization	390,000,000	412,000,000
Stock-based compensation	119,000,000	110,000,000
Impairment charges	11,000,000	0
Redemption of debt	(28,000,000)	0
Equity in loss of investee companies, net of tax and distributions	33,000,000	40,000,000
Change in assets and liabilities, net of effects of acquisitions	(226,000,000)	183,000,000
Net cash flow provided by (used for) operating activities	1,480,000,000	1,680,000,000
Investing Activities:
Acquisitions, net of cash acquired	(70,000,000)	(73,000,000)
Capital expenditures	(152,000,000)	(152,000,000)
Investments in and advances to investee companies	(54,000,000)	(45,000,000)
Proceeds from sale of investments	11,000,000	8,000,000
Proceeds from dispositions	46,000,000	13,000,000
Net cash flow provided by (used for) investing activities	(219,000,000)	(249,000,000)
Financing Activities:
Proceeds from issuance of notes	1,567,000,000	4,000,000
Repayment of notes	(1,583,000,000)	(2,000,000)
Payment of capital lease obligations	(15,000,000)	(14,000,000)
Payment of contingent consideration	(33,000,000)	0
Dividends	(199,000,000)	(140,000,000)
Purchase of company common stock	(839,000,000)	(850,000,000)
Payment of payroll taxes in lieu of issuing shares for stock-based compensation	(105,000,000)	(81,000,000)
Proceeds from exercise of stock options	140,000,000	58,000,000
Excess tax benefit from stock-based compensation	93,000,000	66,000,000
Other financing activities	0	(5,000,000)
Net cash flow provided by (used for) financing activities	(974,000,000)	(964,000,000)
Net increase (decrease) in cash and cash equivalents	287,000,000	467,000,000
Cash and cash equivalents at beginning of period	660,000,000	480,000,000
Cash and cash equivalents at end of period	947,000,000	947,000,000
Supplemental disclosure of cash flow information
Cash paid for interest (including premium on early extinguishment of debt)	365,000,000	313,000,000
Cash paid for income taxes	$ 353,000,000	$ 171,000,000