Condensed Consolidating Supplemental Guarantor Information Cash Flows (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Net cash provided by (used in) operating activities	$ 111	$ (11)
Expenditures for property, plant and equipment	66	44
Proceeds from Sale of Property, Plant, and Equipment	0	2
Additions to capitalized software	73	45
Business acquisitions, net of cash acquired	1,642	696
Proceeds from (payment of) of intercompany notes	0	0
Investments in equity affiliates	0	0
Changes in restricted cash	1,114	0
Other investing activities, net	(4)	(6)
Net cash used in investing activities	(663)	(777)
Tax witholding payments on behalf of employees	24	27
Short term borrowings, net	9	6
Proceeds from employee stock plans	7	45
Equity contribution	0	0
Payments on term credit facility	(3)	(35)
Borrowings on term credit facility	250	0
Payments on revolving credit facility	255	495
Borrowings on revolving credit facility	570	725
Debt issuance costs	(3)	(3)
Dividend distribution to consolidated subsidiaries	0	0
Other financing activities	(3)	0
Borrowings (repayments) of intercompany notes	0	0
Net cash provided by (used in) financing activities	548	216
Net cash used in operating activities	(38)	(24)
Effect of exchange rate changes on cash and cash equivalents	(3)	(13)
Decrease in cash and cash equivalents	(45)	(609)
Cash and cash equivalents	483	460	528	1,069
Parent Company [Member]
Net cash provided by (used in) operating activities	17	(70)
Expenditures for property, plant and equipment	31	10
Proceeds from Sale of Property, Plant, and Equipment		2
Additions to capitalized software	43	32
Business acquisitions, net of cash acquired	1,642	24
Proceeds from (payment of) of intercompany notes	40	(312)
Investments in equity affiliates	2	275
Changes in restricted cash	1,114
Other investing activities, net	3	(5)
Net cash used in investing activities	(567)	(646)
Tax witholding payments on behalf of employees	24	27
Short term borrowings, net	0	0
Proceeds from employee stock plans	7	45
Equity contribution	0	0
Payments on term credit facility	(3)	(35)
Borrowings on term credit facility	250
Payments on revolving credit facility	255	495
Borrowings on revolving credit facility	570	725
Debt issuance costs	(3)	(3)
Dividend distribution to consolidated subsidiaries	0	0
Other financing activities	0
Borrowings (repayments) of intercompany notes	0	0
Net cash provided by (used in) financing activities	542	210
Net cash used in operating activities	(38)	(24)
Effect of exchange rate changes on cash and cash equivalents	0	0
Decrease in cash and cash equivalents	(46)	(530)
Cash and cash equivalents	29	41	75	571
Guarantor Subsidiary [Member]
Net cash provided by (used in) operating activities	(46)	11
Expenditures for property, plant and equipment	0	0
Proceeds from Sale of Property, Plant, and Equipment		0
Additions to capitalized software	0	0
Business acquisitions, net of cash acquired	0	0
Proceeds from (payment of) of intercompany notes	50	0
Investments in equity affiliates	0	0
Changes in restricted cash	0
Other investing activities, net	0	0
Net cash used in investing activities	50	0
Tax witholding payments on behalf of employees	0	0
Short term borrowings, net	0	0
Proceeds from employee stock plans	0	0
Equity contribution	0	0
Payments on term credit facility	0	0
Borrowings on term credit facility	0
Payments on revolving credit facility	0	0
Borrowings on revolving credit facility	0	0
Debt issuance costs	0	0
Dividend distribution to consolidated subsidiaries	0	0
Other financing activities	0
Borrowings (repayments) of intercompany notes	0	0
Net cash provided by (used in) financing activities	0	0
Net cash used in operating activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	(2)
Decrease in cash and cash equivalents	4	9
Cash and cash equivalents	15	15	11	6
Non-Guarantor Subsidiaries [Member]
Net cash provided by (used in) operating activities	169	77
Expenditures for property, plant and equipment	35	34
Proceeds from Sale of Property, Plant, and Equipment		0
Additions to capitalized software	30	13
Business acquisitions, net of cash acquired	0	672
Proceeds from (payment of) of intercompany notes	0	0
Investments in equity affiliates	0	0
Changes in restricted cash	0
Other investing activities, net	(7)	(1)
Net cash used in investing activities	(58)	(718)
Tax witholding payments on behalf of employees	0	0
Short term borrowings, net	9	6
Proceeds from employee stock plans	0	0
Equity contribution	2	275
Payments on term credit facility	0	0
Borrowings on term credit facility	0
Payments on revolving credit facility	0	0
Borrowings on revolving credit facility	0	0
Debt issuance costs	0	0
Dividend distribution to consolidated subsidiaries	(29)	(29)
Other financing activities	(3)
Borrowings (repayments) of intercompany notes	(90)	312
Net cash provided by (used in) financing activities	(111)	564
Net cash used in operating activities	0	0
Effect of exchange rate changes on cash and cash equivalents	(3)	(11)
Decrease in cash and cash equivalents	(3)	(88)
Cash and cash equivalents	439	404	442	492
Consolidation, Eliminations [Member]
Net cash provided by (used in) operating activities	(29)	(29)
Expenditures for property, plant and equipment	0	0
Proceeds from Sale of Property, Plant, and Equipment		0
Additions to capitalized software	0	0
Business acquisitions, net of cash acquired	0	0
Proceeds from (payment of) of intercompany notes	(90)	312
Investments in equity affiliates	(2)	(275)
Changes in restricted cash	0
Other investing activities, net	0	0
Net cash used in investing activities	(88)	587
Tax witholding payments on behalf of employees	0	0
Short term borrowings, net	0	0
Proceeds from employee stock plans	0	0
Equity contribution	(2)	(275)
Payments on term credit facility	0	0
Borrowings on term credit facility	0
Payments on revolving credit facility	0	0
Borrowings on revolving credit facility	0	0
Debt issuance costs	0	0
Dividend distribution to consolidated subsidiaries	29	29
Other financing activities	0
Borrowings (repayments) of intercompany notes	90	(312)
Net cash provided by (used in) financing activities	117	(558)
Net cash used in operating activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0
Decrease in cash and cash equivalents	0	0
Cash and cash equivalents	$ 0	$ 0	$ 0	$ 0