2.2.0.25falsefalse127 - Disclosure - Goodwill and Other Intangible Assets - Additional Information (Detail)truefalseIn Millionsfalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011
USD ($)
USD ($) / shares
$eol_PE1341----1110-Q0005_STD_90_20110331_0http://www.sec.gov/CIK0000080424duration2011-01-01T00:00:002011-03-31T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0sharesStandardhttp://www.xbrl.org/2003/instanceshares0USDUSD$2falsefalseUSDfalsefalse1/1/2010 - 3/31/2010
USD ($)
USD ($) / shares
$eol_PE1341----1110-Q0005_STD_90_20100331_0http://www.sec.gov/CIK0000080424duration2010-01-01T00:00:002010-03-31T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0sharesStandardhttp://www.xbrl.org/2003/instanceshares0USDUSD$3falsefalseUSDfalsefalse7/1/2010 - 3/31/2011
USD ($)
USD ($) / shares
$eol_PE1341----1110-Q0005_STD_274_20110331_0http://www.sec.gov/CIK0000080424duration2010-07-01T00:00:002011-03-31T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0sharesStandardhttp://www.xbrl.org/2003/instanceshares0USDUSD$4falsefalseUSDfalsefalse7/1/2009 - 3/31/2010
USD ($)
USD ($) / shares
$eol_PE1341----1110-Q0005_STD_274_20100331_0http://www.sec.gov/CIK0000080424duration2009-07-01T00:00:002010-03-31T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0sharesStandardhttp://www.xbrl.org/2003/instanceshares0USDUSD$5false0us-gaap_AmortizationOfIntangibleAssetsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse128000000128falsetruefalsefalsefalse2truefalsefalse147000000147falsetruefalsefalsefalse3truefalsefalse399000000399falsetruefalsefalsefalse4truefalsefalse435000000435falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(2)
falsefalse41Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue
