Condensed Consolidated and Combined Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating Activities
Net income	$ 224	$ 227
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	103	104
Share-based compensation	16	7
Non-cash separation costs	0	8
Restructuring and asset impairment charges	4	2
Payments for restructuring	0	(7)
Changes in assets and liabilities (net of acquisitions):
Changes in receivables	(33)	(58)
Changes in inventories	(33)	(40)
Changes in accounts payable	(7)	(31)
Changes in accrued liabilities	(30)	14
Changes in accrued taxes	1	4
Net changes in other assets and liabilities	(14)	18
Other, net	(1)	4
Net Cash - Operating activities	230	252
Investing Activities
Capital expenditures	(81)	(79)
Acquisitions, net of cash acquired	(12)	(309)
Proceeds from the sale of property, plant and equipment	4	9
Other, net	0	2
Net Cash - Investing activities	(89)	(377)
Financing Activities
Net transfer to former parent	(9)	(1,012)
Issuance of short-term debt	12	5
Issuance of senior notes, net of discount	0	1,189
Principal payments of debt and capital lease obligations	(6)	0
Purchase of Xylem common stock	(4)	0
Proceeds from exercise of employee stock options	22	0
Dividends paid	(56)	0
Net Cash - Financing activities	(41)	182
Effect of exchange rate changes on cash	6	(4)
Net change in cash and cash equivalents	106	53
Cash and cash equivalents at beginning of year	318	131
Cash and cash equivalents at end of year	424	184
Cash paid during the period for:
Interest	38	0
Income taxes (net of refunds received)	$ 76	$ 37