Supplemental Cash Flow Data (Tables)

12 Months Ended

Dec. 31, 2011

Supplemental Cash Flow Elements [Abstract]

Cash paid for interest and income taxes, and significant non-cash investing and financing activities

	2011		2010		2009
Cash Paid For:
Interest	$	199	$	190	$	209
Income taxes	349		357		308
Significant Non-Cash Investing and Financing Activities:
Capital lease obligations incurred	$	58	$	16	$	7
Increase (decrease) in accrued capital expenditures	55		51		(17		)