Consolidated Condensed Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income	$ 790	$ 806
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	30	28
Pension and other postretirement benefits contributions	(41)	(33)
Pension and other postretirement benefits expense	34	22
Deferred income taxes	(1)	(7)
Share-based compensation	14	11
Excess tax benefits from share-based payment arrangements	(9)	(3)
Changes in operating assets and liabilities, net of amounts from acquired business:
Accounts and other receivables	(13)	(9)
Inventories	(124)	(42)
Accounts payable and accrued liabilities	54	(17)
Settlement costs	(84)	(3)
Income taxes	(17)	(55)
Other current assets	6	(6)
Other assets	2
Net cash provided by operating activities	641	692
Cash flows from investing activities:
Business acquisition, net of cash acquired	(135)
Additions to plant and equipment	(51)	(33)
Net cash used in investing activities	(186)	(33)
Cash flows from financing activities:
Shares repurchased	(274)	(1,221)
Proceeds from issuance of long-term debt	500	750
Dividends paid	(608)	(550)
Debt issuance costs	(6)	(6)
Proceeds from exercise of stock options	5	7
Excess tax benefits from share-based payment arrangements	9	3
Net cash used in financing activities	(374)	(1,017)
Change in cash and cash equivalents	81	(358)
Cash and cash equivalents, beginning of year	1,634	2,063
Cash and cash equivalents, end of period	1,715	1,705
Cash paid for income taxes	471	528
Cash paid for interest, net of cash received from interest rate swaps of $18 and $18	$ 84	$ 49