Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Activities
Net income	$ 55	$ 34
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	12	10
Gain on sale of discontinued operations		(1)
Currency exchange rate differences on financial transactions and other losses	30	30
Equity in net income of affiliates, net of dividends received	(1)	2
Depreciation and amortization	141	128
Changes in operating assets and liabilities, net of effect of businesses acquired and divested:
Trade and other receivables, net	21	27
Prepaid expenses and other current assets	(48)	(31)
Accounts payable and other current liabilities and deferred revenues	(167)	(165)
Other non-current liabilities	3	(3)
Interest payable	43	27
Income taxes	1	(4)
Net cash provided by operating activities	90	54
Investing Activities
Acquisition of subsidiaries and affiliates, net of cash acquired	(184)	(11)
Additions to property, plant and equipment and other assets	(14)	(9)
Additions to intangible assets	(63)	(61)
Other investing activities		(1)
Net cash used in investing activities	(261)	(82)
Financing Activities
Net borrowings under revolving credit facility	30	55
Proceeds from issuances of debt, net of issuance costs		1,866
Repayment of debt	(24)	(1,889)
Increase in other short-term borrowings		1
Cash dividends paid to stockholders	(74)	(56)
Repurchase of common stock	(16)
Proceeds from exercise of stock options	11	16
Other financing activities	(2)	(5)
Net cash used in financing activities	(75)	(12)
Effect of exchange-rate changes on cash and cash equivalents	(17)	(15)
Net decrease in cash and cash equivalents	(263)	(55)
Cash and cash equivalents at beginning of period	564	288
Cash and cash equivalents at end of period	301	233
Supplemental Cash Flow Information
Cash paid for income taxes	(32)	(29)
Cash paid for interest, net of amounts capitalized	$ (34)	$ (56)