Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities
Net income	$ 591	$ 236
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	32	24
Gain on sale of discontinued operations	(303)
Currency exchange rate differences on financial transactions and other losses	29	7
Equity in net income of affiliates, net of dividends received	1	6
Depreciation and amortization	375	388
Changes in operating assets and liabilities, net of effect of businesses acquired and divested:
Trade and other receivables, net	(23)	13
Prepaid expenses and other current assets	(37)	(30)
Accounts payable and other current liabilities and deferred revenues	(128)	(270)
Other non-current liabilities	(4)	(2)
Interest payable	36	46
Income taxes	12	26
Net cash provided by operating activities	581	444
Investing Activities
Acquisition of subsidiaries and affiliates, net of cash acquired	(1,202)	(136)
Proceeds from sale of subsidiaries and affiliates, net	934	(1)
Additions to property, plant and equipment and other assets	(79)	(72)
Additions to intangible assets	(176)	(153)
Net cash used in investing activities	(523)	(362)
Financing Activities
Net borrowings under revolving credit facility		65
Proceeds from issuances of debt, net of issuance costs	2,485	1,209
Repayment of debt	(1,933)	(1,381)
Increase in other short-term borrowings	12	10
Dividends paid	(189)
Activity under stock plans	59	28
Other financing activities	(24)	(11)
Net cash provided by/(used in) financing activities	410	(80)
Effect of exchange-rate changes on cash and cash equivalents	(19)	4
Net increase in cash and cash equivalents	449	6
Cash and cash equivalents at beginning of period	288	319
Cash and cash equivalents at end of period	737	325
Supplemental Cash Flow Information
Cash paid for income taxes	(101)	(88)
Cash paid for interest, net of amounts capitalized	$ (201)	$ (273)