Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating Activities:
Net earnings (loss)	$ 915,000,000	$ 790,000,000
Less: Net loss from discontinued operations	(24,000,000)	(56,000,000)
Net earnings (loss) from continuing operations	939,000,000	846,000,000
Adjustments to reconcile net earnings from continuing operations to net cash flow provided by (used for) operating activities:
Depreciation and amortization	230,000,000	238,000,000
Impairment charges	0	11,000,000
Stock-based compensation	109,000,000	80,000,000
Redemption of debt	0	(25,000,000)
Equity in loss of investee companies, net of tax and distributions	24,000,000	19,000,000
Change in assets and liabilities, net of investing and financing activities	(229,000,000)	99,000,000
Net cash flow provided by (used for) operating activities from continuing operations	1,073,000,000	1,268,000,000
Net cash flow provided by (used for) operating activities from discontinued operations	(22,000,000)	(10,000,000)
Net cash flow provided by (used for) operating activities	1,051,000,000	1,258,000,000
Investing Activities:
Acquisitions, net of cash acquired	(30,000,000)	(69,000,000)
Capital expenditures	(83,000,000)	(84,000,000)
Investments in and advances to investee companies	(139,000,000)	(39,000,000)
Proceeds from sale of investments	18,000,000	6,000,000
Proceeds from dispositions	12,000,000	1,000,000
Net cash flow provided by (used for) investing activities from continuing operation	(222,000,000)	(185,000,000)
Net cash flow provided by (used for) investing activities from discontinued operations	(8,000,000)	(9,000,000)
Net cash flow provided by (used for) investing activities	(230,000,000)	(194,000,000)
Financing Activities:
Proceeds from short-term debt borrowings, net	452,000,000	0
Proceeds from issuance of notes	0	1,567,000,000
Repayment of notes	0	(700,000,000)
Payment of capital lease obligations	(9,000,000)	(10,000,000)
Payment of contingent consideration	(30,000,000)	(33,000,000)
Dividends	(155,000,000)	(135,000,000)
Purchase of company common stock	(1,579,000,000)	(564,000,000)
Payment of payroll taxes in lieu of issuing shares for stock-based compensation	(139,000,000)	(105,000,000)
Proceeds from exercise of stock options	98,000,000	71,000,000
Excess tax benefit from stock-based compensation	119,000,000	73,000,000
Other financing activities	(4,000,000)	0
Net cash flow provided by (used for) financing activities	(1,247,000,000)	164,000,000
Net increase (decrease) in cash and cash equivalents	(426,000,000)	1,228,000,000
Cash and cash equivalents at beginning of period	708,000,000	660,000,000
Cash and cash equivalents at end of period	282,000,000	1,888,000,000
Supplemental disclosure of cash flow information
Cash paid for interest	180,000,000	196,000,000
Cash paid for income taxes	259,000,000	273,000,000
Equipment acquired under capitalized leases	$ 58,000,000	$ 1,000,000