$ATI
ATI INC Stock $ati

$ati Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000119312513084310 Filed on February 28, 2013

Income Statement

Concept	2012 Q4	2012	2011 Q4
Revenue	$1.101B	$4.667B	$1.251B
YoY Change	-12.01%	-3.02%	20.61%
Cost Of Revenue	$900.7M	$4.041B	$1.082B
YoY Change	-16.79%	-0.84%	18.91%
Gross Profit	$119.6M	$625.5M	$169.0M
YoY Change	-29.23%	-15.11%	32.76%
Gross Profit Margin	10.86%	13.4%	13.5%
Selling, General & Admin	$78.30M	$321.6M	$97.40M
YoY Change	-19.61%	-0.43%	9.68%
% of Gross Profit	65.47%	51.41%	57.63%
Research & Development		$22.30M
YoY Change		31.18%
% of Gross Profit		3.57%
Depreciation & Amortization	$48.90M	$194.0M	$47.20M
YoY Change	3.6%	11.24%	32.96%
% of Gross Profit	40.89%	31.02%	27.93%
Operating Expenses	$78.30M	$343.9M	$97.40M
YoY Change	-19.61%	1.15%	9.68%
Operating Profit	$41.30M	$303.9M	$71.60M
YoY Change	-42.32%	-26.56%	85.97%
Interest Expense	-$17.00M	-$74.80M	-$22.20M
YoY Change	-23.42%	-18.96%	36.2%
% of Operating Profit	-41.16%	-24.61%	-31.01%
Other Income/Expense, Net	-$600.0K	$0.00	$500.0K
YoY Change	-220.0%	-100.0%	25.0%
Pretax Income	$24.80M	$232.3M	$49.90M
YoY Change	-50.3%	-27.88%	120.8%
Income Tax	$5.800M	$72.40M	$15.70M
% Of Pretax Income	23.39%	31.17%	31.46%
Net Earnings	$10.50M	$158.4M	$31.70M
YoY Change	-66.88%	-26.08%	109.93%
Net Earnings / Revenue	0.95%	3.39%	2.53%
Basic Earnings Per Share	$0.10	$1.49	$0.30
Diluted Earnings Per Share	$0.10	$1.43	$0.29
COMMON SHARES
Basic Shares Outstanding	107.3M shares	106.1M shares	106.4M shares
Diluted Shares Outstanding		116.6M shares

Balance Sheet

Concept	2012 Q4	2012	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$305.0M	$305.0M	$380.6M
YoY Change	-19.86%	-19.86%	-11.96%
Cash & Equivalents	$304.6M		$380.6M
Short-Term Investments	$400.0K	$82.20M
Other Short-Term Assets	$56.10M	$55.70M	$95.50M
YoY Change	-41.26%	-41.68%	-15.41%
Inventory	$1.537B	$1.537B	$1.384B
Prepaid Expenses
Receivables	$613.3M	$613.3M	$709.1M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.511B	$2.511B	$2.570B
YoY Change	-2.29%	-2.29%	21.48%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.560B	$2.560B	$2.369B
YoY Change	8.07%	8.07%	19.08%
Goodwill	$740.1M		$737.7M
YoY Change	0.33%		256.72%
Intangibles
YoY Change
Long-Term Investments	$0.00
YoY Change
Other Assets	$365.7M	$437.2M	$370.9M
YoY Change	-1.4%	17.88%	103.34%
Total Long-Term Assets	$3.737B	$3.737B	$3.477B
YoY Change	7.47%	7.47%	46.2%
TOTAL ASSETS
Total Short-Term Assets	$2.511B	$2.511B	$2.570B
Total Long-Term Assets	$3.737B	$3.737B	$3.477B
Total Assets	$6.248B	$6.248B	$6.047B
YoY Change	3.32%	3.32%	34.57%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$499.9M	$499.9M	$490.7M
YoY Change	1.87%	1.87%	24.51%
Accrued Expenses	$330.5M		$320.3M
YoY Change	3.18%		28.17%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$17.10M	$17.10M	$27.30M
YoY Change	-37.36%	-37.36%	-80.69%
Total Short-Term Liabilities	$871.5M	$871.5M	$861.8M
YoY Change	1.13%	1.13%	8.95%
LONG-TERM LIABILITIES
Long-Term Debt	$1.463B	$1.463B	$1.482B
YoY Change	-1.28%	-1.28%	60.75%
Other Long-Term Liabilities	$109.9M	$1.326B	$124.7M
YoY Change	-11.87%	18.23%	23.96%
Total Long-Term Liabilities	$109.9M	$2.789B	$124.7M
YoY Change	-11.87%	7.12%	23.96%
TOTAL LIABILITIES
Total Short-Term Liabilities	$871.5M	$871.5M	$861.8M
Total Long-Term Liabilities	$109.9M	$2.789B	$124.7M
Total Liabilities	$3.661B	$3.768B	$3.475B
YoY Change	5.33%	5.5%	47.0%
SHAREHOLDERS EQUITY
Retained Earnings	$2.428B		$2.362B
YoY Change	2.8%		6.14%
Common Stock	$1.193B		$1.218B
YoY Change	-2.09%		82.05%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$111.3M		$162.7M
YoY Change	-31.59%		-13.46%
Treasury Stock Shares	2.296M shares		3.341M shares
Shareholders Equity	$2.480B	$2.480B	$2.475B
YoY Change
Total Liabilities & Shareholders Equity	$6.248B	$6.248B	$6.047B
YoY Change	3.32%	3.32%	34.57%

Cashflow Statement

Concept	2012 Q4	2012	2011 Q4
OPERATING ACTIVITIES
Net Income	$10.50M	$158.4M	$31.70M
YoY Change	-66.88%	-26.08%	109.93%
Depreciation, Depletion And Amortization	$48.90M	$194.0M	$47.20M
YoY Change	3.6%	11.24%	32.96%
Cash From Operating Activities	$181.7M	$427.5M	$189.3M
YoY Change	-4.01%	44.04%	108.02%
INVESTING ACTIVITIES
Capital Expenditures	-$136.4M	-$382.0M	-$109.4M
YoY Change	24.68%	37.31%	27.36%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	$1.800M	-$3.300M	-$300.0K
YoY Change	-700.0%	22.22%	-120.0%
Cash From Investing Activities	-$134.6M	-$378.7M	-$109.7M
YoY Change	22.7%	-39.38%	29.98%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-23.50M	-$124.8M	-130.5M
YoY Change	-81.99%	-145.18%	641.48%
NET CHANGE
Cash From Operating Activities	181.7M	$427.5M	189.3M
Cash From Investing Activities	-134.6M	-$378.7M	-109.7M
Cash From Financing Activities	-23.50M	-$124.8M	-130.5M
Net Change In Cash	23.60M	-$76.00M	-50.90M
YoY Change	-146.37%	47.0%	362.73%
FREE CASH FLOW
Cash From Operating Activities	$181.7M	$427.5M	$189.3M
Capital Expenditures	-$136.4M	-$382.0M	-$109.4M
Free Cash Flow	$318.1M	$809.5M	$298.7M
YoY Change	6.49%	40.78%	68.85%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012Q2	dei	Entity Public Float EntityPublicFloat	3400000000	USD
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	107474678	shares
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	5031500000	USD
CY2011	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	5183000000	USD
CY2010	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	4047800000	USD
CY2012	us-gaap	Cost Of Goods Sold CostOfGoodsSold	4338300000	USD
CY2010	us-gaap	Cost Of Goods Sold CostOfGoodsSold	3557500000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	377800000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	304900000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	382100000	USD
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.97
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	600000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	315400000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	431100000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	185400000	USD
CY2012	ati	Interest Expense Net InterestExpenseNet	71600000	USD
CY2011	ati	Interest Expense Net InterestExpenseNet	92300000	USD
CY2010	ati	Interest Expense Net InterestExpenseNet	62700000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	200000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	244000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	339400000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	125700000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	76200000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	116300000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47000000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	167800000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	223100000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	78700000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	9400000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	8800000	USD
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	8000000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	158400000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	214300000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	70700000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.09
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.43
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2011	us-gaap	Cost Of Goods Sold CostOfGoodsSold	4369800000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-5400000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2700000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	14300000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-100000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	9100000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-19400000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-9800000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	-20800000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	25500000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	5200000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-4500000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	2300000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-1800000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-7200000	USD
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CY2010	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	4700000	USD
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CY2012	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	11800000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-17800000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	165000000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	740100000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	67300000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-270700000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-85900000	USD
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CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	81900000	USD
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CY2011Q4	us-gaap	Goodwill Goodwill	737700000	USD
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CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	70600000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11600000	USD
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CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	277100000	USD
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CY2011Q4	us-gaap	Inventory Net InventoryNet	1384300000	USD
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CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2559900000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2368800000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	71500000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	0	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	365700000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	370900000	USD
CY2012Q4	us-gaap	Assets Assets	6247800000	USD
CY2011Q4	us-gaap	Assets Assets	6046900000	USD
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CY2012Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	24000000	USD
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CY2012Q4	us-gaap	Debt Current DebtCurrent	17100000	USD
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CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	861800000	USD
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CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	124700000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	3660700000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	3475300000	USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	111300000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	162700000	USD
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CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	2479600000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	2475300000	USD
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	109695171	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	109695171	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	107398963	shares
CY2012Q4	us-gaap	Minority Interest MinorityInterest	107500000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	96300000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2587100000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2571600000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6247800000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6046900000	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.10
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.10
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	106354612	shares
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2296208	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	3340559	shares
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1463000000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1482000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	0	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	9800000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	194000000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	174400000	USD
CY2012	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-19400000	USD
CY2011	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	52700000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	152300000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	227300000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-95800000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	78800000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	9200000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	50000000	USD
CY2012	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	58900000	USD
CY2011	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	19600000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	9400000	USD
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	42400000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-64100000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-40700000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	427500000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	296800000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	382000000	USD
CY2011	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	278200000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3300000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2700000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-124800000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-624700000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-378700000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	276200000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	500000000	USD
CY2012	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	16700000	USD
CY2011	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	143800000	USD
CY2012	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-10400000	USD
CY2011	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-3100000	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5000000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	76500000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	74700000	USD
CY2012	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2011	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	7200000	USD
CY2011	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	2200000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2200000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1400000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	10800000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-76000000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-51700000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	432300000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	349200000	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2300000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-8100000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1400000	USD
CY2010	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	70800000	USD
CY2010	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2010	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	900000	USD
CY2010	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	2900000	USD
CY2010	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	11300000	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2010	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	219100000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	30500000	USD
CY2010	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-32200000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	199000000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	153400000	USD
CY2010	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	34300000	USD
CY2010	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	102200000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	141500000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	27100000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-216800000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-86800000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-276500000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	708800000	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2010	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2012	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	23400000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2089600000	USD
CY2011	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.72
CY2010	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.72
CY2012	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.72
CY2010	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	70800000	USD
CY2010	ati	Employee Stock Plans EmployeeStockPlans	20300000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2129400000	USD
CY2011	ati	Employee Stock Plans EmployeeStockPlans	57600000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	76500000	USD
CY2012	ati	Employee Stock Plans EmployeeStockPlans	10200000	USD
CY2012	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	100000	USD
CY2011	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	513600000	USD
CY2011Q4	us-gaap	Business Combination Acquisition Of Less Than100 Percent Noncontrolling Interest Fair Value BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue	700000	USD
CY2011	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	200000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	7200000	USD
CY2012	us-gaap	Basis Of Accounting BasisOfAccounting	<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0px;">Use of Estimates</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">The preparation of consolidated financial statements in conformity with </font><font style="font-family:Times New Roman;font-size:10pt;">United States</font><font style="font-family:Times New Roman;font-size:10pt;"> generally accepted accounting principles requires management to make estimates and assumptions that affect reported amounts of assets and liabilities at the date of the financial statements, as well as the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates. Management believes that the estimates are reasonable.</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p>
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5500000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5900000	USD
CY2011Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	18500000	USD
CY2012	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	25300000	USD
CY2011	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	19300000	USD
CY2010	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	16500000	USD
CY2012	us-gaap	Research And Development Arrangement Contract To Perform For Others Costs Incurred Gross ResearchAndDevelopmentArrangementContractToPerformForOthersCostsIncurredGross	1500000	USD
CY2011	us-gaap	Research And Development Arrangement Contract To Perform For Others Costs Incurred Gross ResearchAndDevelopmentArrangementContractToPerformForOthersCostsIncurredGross	1500000	USD
CY2010	us-gaap	Research And Development Arrangement Contract To Perform For Others Costs Incurred Gross ResearchAndDevelopmentArrangementContractToPerformForOthersCostsIncurredGross	800000	USD
CY2012	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	2400000	USD
CY2012Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	3100000	USD
CY2012Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	351600000	USD
CY2011Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	205700000	USD
CY2012Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1063900000	USD
CY2011Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1150000000	USD
CY2012Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	209000000	USD
CY2011Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	199900000	USD
CY2012Q4	us-gaap	Inventory Gross InventoryGross	1624500000	USD
CY2011Q4	us-gaap	Inventory Gross InventoryGross	1555600000	USD
CY2012Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	76900000	USD
CY2011Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	153700000	USD
CY2012Q4	us-gaap	Progress Payments Netted Against Inventory For Long Term Contracts Or Programs ProgressPaymentsNettedAgainstInventoryForLongTermContractsOrPrograms	11000000	USD
CY2011Q4	us-gaap	Progress Payments Netted Against Inventory For Long Term Contracts Or Programs ProgressPaymentsNettedAgainstInventoryForLongTermContractsOrPrograms	17600000	USD
CY2012Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	997300000	USD
CY2012	us-gaap	Effect Of Lifo Inventory Liquidation On Income EffectOfLIFOInventoryLiquidationOnIncome	-1500000	USD
CY2011Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	987100000	USD
CY2011	us-gaap	Effect Of Lifo Inventory Liquidation On Income EffectOfLIFOInventoryLiquidationOnIncome	-100000	USD
CY2010	us-gaap	Effect Of Lifo Inventory Liquidation On Income EffectOfLIFOInventoryLiquidationOnIncome	1800000	USD
CY2010	ati	Lifo Provision Benefit LifoProvisionBenefit	60200000	USD
CY2012	ati	Lifo Provision Benefit LifoProvisionBenefit	-76800000	USD
CY2011	ati	Lifo Provision Benefit LifoProvisionBenefit	-9300000	USD
CY2012Q4	us-gaap	Land Land	34400000	USD
CY2012Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	921000000	USD
CY2012Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	3344400000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	4299800000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1739900000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3937200000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1568400000	USD
CY2011Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	3146200000	USD
CY2011Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	757000000	USD
CY2011Q4	us-gaap	Land Land	34000000	USD
CY2012Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	601600000	USD
CY2011Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	346200000	USD
CY2012	us-gaap	Depreciation Depreciation	169500000	USD
CY2011	us-gaap	Depreciation Depreciation	152800000	USD
CY2010	us-gaap	Depreciation Depreciation	126300000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	24500000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	21600000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15200000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	700000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1600000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1100000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1100000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	600000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	13200000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	12800000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	13000000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-300000	USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-600000	USD
CY2012Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	304600000	USD
CY2012Q4	us-gaap	Cash Cash	222800000	USD
CY2012Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	81800000	USD
CY2011Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	41000000	USD
CY2011Q4	us-gaap	Cash Cash	339600000	USD
CY2011Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	380600000	USD
CY2012Q4	us-gaap	Acquired Finite Lived Intangible Asset Amount AcquiredFiniteLivedIntangibleAssetAmount	105000000	USD
CY2011Q4	us-gaap	Acquired Finite Lived Intangible Asset Amount AcquiredFiniteLivedIntangibleAssetAmount	105000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8200000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3300000	USD
CY2012Q4	ati	Total Intangible Assets Gross TotalIntangibleAssetsGross	166000000	USD
CY2011Q4	ati	Total Intangible Assets Gross TotalIntangibleAssetsGross	166000000	USD
CY2011Q4	ati	Total Intangible Assets Accumulated Amortization TotalIntangibleAssetsAccumulatedAmortization	3300000	USD
CY2012Q4	ati	Total Intangible Assets Accumulated Amortization TotalIntangibleAssetsAccumulatedAmortization	8200000	USD
CY2012Q4	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	79300000	USD
CY2011Q4	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	86300000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	4900000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	4900000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	4900000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4900000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	4900000	USD
CY2012Q4	ati	Amortization Of Acquired Intangible Assets1 AmortizationOfAcquiredIntangibleAssets1	4900000	USD
CY2011Q4	ati	Amortization Of Acquired Intangible Assets1 AmortizationOfAcquiredIntangibleAssets1	3300000	USD
CY2012Q4	ati	Total Debt TotalDebt	1480100000	USD
CY2011Q4	ati	Total Debt TotalDebt	1509300000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	17100000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	419600000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	17200000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	21400000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	300000	USD
CY2012	us-gaap	Interest Expense Debt InterestExpenseDebt	72400000	USD
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	24500000	USD
CY2012	us-gaap	Interest Costs Incurred InterestCostsIncurred	96500000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	800000	USD
CY2011	us-gaap	Interest Expense Debt InterestExpenseDebt	93700000	USD
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	12100000	USD
CY2011	us-gaap	Interest Costs Incurred InterestCostsIncurred	102800000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	1400000	USD
CY2010	us-gaap	Interest Expense Debt InterestExpenseDebt	63800000	USD
CY2010	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	12500000	USD
CY2010	us-gaap	Interest Costs Incurred InterestCostsIncurred	72800000	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	1100000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	6200000	USD
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	20700000	USD
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	17100000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	11800000	USD
CY2012	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-2200000	USD
CY2012	ati	Percentage Of Raw Material Usage Hedged PercentageOfRawMaterialUsageHedged	0.10
CY2012	ati	Maximum Amount Of Time Hedged For Nickel Requirements MaximumAmountOfTimeHedgedForNickelRequirements	2016
CY2013	ati	Percentage Of Forecasted Natural Gas Usage Hedged PercentageOfForecastedNaturalGasUsageHedged	0.70
CY2014	ati	Percentage Of Forecasted Natural Gas Usage Hedged PercentageOfForecastedNaturalGasUsageHedged	0.40
CY2014	ati	Percentage Electricity Hedged PercentageElectricityHedged	0.10
CY2015	ati	Percentage Of Forecasted International Sales Hedged PercentageOfForecastedInternationalSalesHedged	0.10
CY2015	ati	Percentage Of Forecasted Natural Gas Usage Hedged PercentageOfForecastedNaturalGasUsageHedged	0.05
CY2011Q4	ati	Aoci Derivative Financial Instruments AociDerivativeFinancialInstruments	100000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-100000	USD
CY2012	us-gaap	Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear	118900000	USD
CY2013	ati	Projected Retirement Benefit Expense In Next Year ProjectedRetirementBenefitExpenseInNextYear	130000000	USD
CY2012	us-gaap	Defined Benefit Plan Amortization Of Net Prior Service Cost Credit DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit	-15200000	USD
CY2012	us-gaap	Defined Benefit Plan Amortization Of Net Gains Losses DefinedBenefitPlanAmortizationOfNetGainsLosses	-134100000	USD
CY2012Q4	ati	Percentage Of Total Assets Us Qualified Plan PercentageOfTotalAssetsUsQualifiedPlan	0.97
CY2012Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2028
CY2012	ati	Projected Future Contributions ProjectedFutureContributions	27000000	USD
CY2012	us-gaap	Multiemployer Plans General Nature MultiemployerPlansGeneralNature	The Company contributes to several multiemployer defined benefit pension plans under collective bargaining agreements that cover certain of its union-represented employees. The risks of participating in such plans are different from the risks of single-employer plans, in the following respects: Assets contributed to a multiemployer plan by one employer may be used to provide benefits to employees of other participating employers. If a participating employer ceases to contribute to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers. If the Company ceases to have an obligation to contribute to the multiemployer plan in which it had been a contributing employer, it may be required to pay to the plan an amount based on the underfunded status of the plan and on the history of the Company’s participation in the plan prior to the cessation of its obligation to contribute. The amount that an employer that has ceased to have an obligation to contribute to a multiemployer plan is required to pay to the plan is referred to as a withdrawal liability. The Company’s participation in multiemployer plans for the years ended December 31, 2012, 2011 and 2010 is reported in the following table. Participation with regard to multiemployer plans involving ATI Ladish is included from the May 9, 2011 acquisition date.
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	3400000	USD
CY2012Q4	ati	Noncontrolling Interest Foreign Currency Translation NoncontrollingInterestForeignCurrencyTranslation	23700000	USD
CY2012Q4	ati	Accumulated Other Comprehensive Income Attributable To Noncontrolling Interests AccumulatedOtherComprehensiveIncomeAttributableToNoncontrollingInterests	23700000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-9000000	USD
CY2011Q4	ati	Noncontrolling Interest Foreign Currency Translation NoncontrollingInterestForeignCurrencyTranslation	21800000	USD
CY2011Q4	ati	Accumulated Other Comprehensive Income Attributable To Noncontrolling Interests AccumulatedOtherComprehensiveIncomeAttributableToNoncontrollingInterests	21800000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-100000	USD
CY2012Q4	ati	Aoci Derivative Financial Instruments AociDerivativeFinancialInstruments	-2700000	USD
CY2012Q4	ati	Accumulated Other Comprehensive Income Loss Attributable To Ati AccumulatedOtherComprehensiveIncomeLossAttributableToAti	-1029400000	USD
CY2011Q4	ati	Accumulated Other Comprehensive Income Loss Attributable To Ati AccumulatedOtherComprehensiveIncomeLossAttributableToAti	-941600000	USD
CY2012Q4	ati	Defined Benefit Plan Accumulated Other Comprehensive Income Net Of Tax Effect DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetOfTaxEffect	-1030000000	USD
CY2011Q4	ati	Defined Benefit Plan Accumulated Other Comprehensive Income Net Of Tax Effect DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetOfTaxEffect	-932600000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.33
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	7.51
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.11
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.01
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	9.33
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	7.51
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	8.11
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	9.66
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	16.52
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	18.09
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	427000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	107000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	600000	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	701000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	319000	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	171000	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	98000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-1000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-2000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-3000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	107000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	427000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	600000	shares
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	14.21
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	9.53
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.89
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	9.33
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	9.33
CY2012Q4	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Award Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateAwardFairValue	38600000	USD
CY2011Q4	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Award Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateAwardFairValue	36400000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	107000	shares
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	107000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2300000	USD
CY2012	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P0Y4M7D
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P0Y4M7D
CY2010Q4	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Award Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateAwardFairValue	33300000	USD
CY2009Q4	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Award Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateAwardFairValue	26900000	USD
CY2012	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAwardsVestedInPeriodWeightedAverageGrantDateFairValue	-14100000	USD
CY2011	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAwardsVestedInPeriodWeightedAverageGrantDateFairValue	-16300000	USD
CY2010	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAwardsVestedInPeriodWeightedAverageGrantDateFairValue	-4300000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	677000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	976000	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	740000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	727000	shares
CY2012	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAwardsVestedInPeriod	-343000	shares
CY2011	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAwardsVestedInPeriod	-616000	shares
CY2010	ati	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAwardsVestedInPeriod	-78000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-1000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-2000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-86000	shares
CY2012	ati	Restricted Stock Awards Forfeited Grant Date Fair Value RestrictedStockAwardsForfeitedGrantDateFairValue	-100000	USD
CY2011	ati	Restricted Stock Awards Forfeited Grant Date Fair Value RestrictedStockAwardsForfeitedGrantDateFairValue	-100000	USD
CY2010	ati	Restricted Stock Awards Forfeited Grant Date Fair Value RestrictedStockAwardsForfeitedGrantDateFairValue	-6300000	USD
CY2011	ati	Restricted Share Non Vested Grantedin Period Grant Date Fair Value RestrictedShareNonVestedGrantedinPeriodGrantDateFairValue	19500000	USD
CY2010	ati	Restricted Share Non Vested Grantedin Period Grant Date Fair Value RestrictedShareNonVestedGrantedinPeriodGrantDateFairValue	17000000	USD
CY2012	ati	Restricted Share Non Vested Grantedin Period Grant Date Fair Value RestrictedShareNonVestedGrantedinPeriodGrantDateFairValue	16400000	USD
CY2012	ati	Restricted Stock Awards Grantedin Period RestrictedStockAwardsGrantedinPeriod	394000	shares
CY2011	ati	Restricted Stock Awards Grantedin Period RestrictedStockAwardsGrantedinPeriod	319000	shares
CY2010	ati	Restricted Stock Awards Grantedin Period RestrictedStockAwardsGrantedinPeriod	400000	shares
CY2012	ati	Retained Earnings Equity Method Undistributed Earnings RetainedEarningsEquityMethodUndistributedEarnings	36000000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	3100000	shares
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-47300000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	9200000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8100000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-4400000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9200000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	13300000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	8900000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	103700000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	66200000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-42800000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-27500000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	48400000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	83400000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	100000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2400000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6000000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-100000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-700000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	400000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-27500000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	50100000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	89800000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	85400000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	118800000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	44000000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5200000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7700000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5500000	USD
CY2012	ati	Tax Law Changes TaxLawChanges	0	USD
CY2011	ati	Tax Law Changes TaxLawChanges	0	USD
CY2010	ati	Tax Law Changes TaxLawChanges	5800000	USD
CY2012	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-10000000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-7600000	USD
CY2010	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-4800000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-400000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-1700000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-6200000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2200000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1200000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1600000	USD
CY2012	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-500000	USD
CY2011	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-700000	USD
CY2010	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-1900000	USD
CY2012	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	7100000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	3300000	USD
CY2010	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	0	USD
CY2012	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	1400000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	1900000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	3000000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	44800000	USD
CY2010	us-gaap	Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy	-5300000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	85300000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	188500000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	280500000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	87100000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	55500000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	58900000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	38600000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	101700000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	49200000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	28800000	USD
CY2012	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	15800000	USD
CY2011	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	41000000	USD
CY2010	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	20900000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	85900000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8200000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7900000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	210400000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	184500000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	35900000	USD
CY2012Q4	ati	Deferred Tax Liabilities Inventory DeferredTaxLiabilitiesInventory	77100000	USD
CY2011Q4	ati	Deferred Tax Liabilities Inventory DeferredTaxLiabilitiesInventory	83600000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	16000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	14600000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	563800000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	611300000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	534000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	400200000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	398700000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	33300000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	39900000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	31300000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	28100000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	33700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	10400000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	10200000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	64300000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	78400000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	636100000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	556600000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	24800000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22600000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	567300000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	47500000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-33300000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	70400000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	70500000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	247100000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	185200000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	37300000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	17100000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	29700000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	200000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1300000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1500000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	300000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1300000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	15800000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1200000	USD
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.50
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	700000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	100000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2000000	USD
CY2012Q4	us-gaap	Business Acquisition Preacquisition Contingency Amount BusinessAcquisitionPreacquisitionContingencyAmount	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities	400000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	300000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	29200000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1100000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	23000000	USD
CY2012Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	1000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	18500000	USD
CY2011	ati	Unrecognized Tax Benefits Interest And Penalties Period Change Due To Settlements UnrecognizedTaxBenefitsInterestAndPenaltiesPeriodChangeDueToSettlements	6500000	USD
CY2011	ati	Deferred Tax Changes Due To Settlements Of Uncertain Tax Positions DeferredTaxChangesDueToSettlementsOfUncertainTaxPositions	12800000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	6500000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1800000	USD
CY2011Q4	us-gaap	Business Acquisition Preacquisition Contingency Amount BusinessAcquisitionPreacquisitionContingencyAmount	14500000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	800000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	500000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-5100000	USD
CY2010Q4	us-gaap	Business Acquisition Preacquisition Contingency Amount BusinessAcquisitionPreacquisitionContingencyAmount	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012	us-gaap	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Foreign Countries EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountries	1802800000	USD
CY2011	us-gaap	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Foreign Countries EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountries	1814100000	USD
CY2010	us-gaap	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Foreign Countries EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountries	1283800000	USD
CY2012	ati	Entity Wide Disclosure On Geographic Areas Revenue From External Foreign Customers Attributed To Entitys Country Of Domicile EntityWideDisclosureOnGeographicAreasRevenueFromExternalForeignCustomersAttributedToEntitysCountryOfDomicile	1302200000	USD
CY2011	ati	Entity Wide Disclosure On Geographic Areas Revenue From External Foreign Customers Attributed To Entitys Country Of Domicile EntityWideDisclosureOnGeographicAreasRevenueFromExternalForeignCustomersAttributedToEntitysCountryOfDomicile	1356300000	USD
CY2010	ati	Entity Wide Disclosure On Geographic Areas Revenue From External Foreign Customers Attributed To Entitys Country Of Domicile EntityWideDisclosureOnGeographicAreasRevenueFromExternalForeignCustomersAttributedToEntitysCountryOfDomicile	950400000	USD
CY2012	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	5177900000	USD
CY2011	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	5365400000	USD
CY2010	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	4182400000	USD
CY2010	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	134600000	USD
CY2011	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	182400000	USD
CY2012	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	146400000	USD
CY2012	us-gaap	Revenues Revenues	5031500000	USD
CY2011	us-gaap	Revenues Revenues	5183000000	USD
CY2010	us-gaap	Revenues Revenues	4047800000	USD
CY2012	ati	Segment Operating Profit Loss SegmentOperatingProfitLoss	537900000	USD
CY2011	ati	Segment Operating Profit Loss SegmentOperatingProfitLoss	612000000	USD
CY2010	ati	Segment Operating Profit Loss SegmentOperatingProfitLoss	356500000	USD
CY2012	ati	Segment Corporate Expenses Closed Companies Environmental Costs SegmentCorporateExpensesClosedCompaniesEnvironmentalCosts	4300000	USD
CY2011	ati	Segment Corporate Expenses Closed Companies Environmental Costs SegmentCorporateExpensesClosedCompaniesEnvironmentalCosts	4900000	USD
CY2010	ati	Segment Corporate Expenses Closed Companies Environmental Costs SegmentCorporateExpensesClosedCompaniesEnvironmentalCosts	2100000	USD
CY2012	ati	Segment Corporate Expenses Closed Companies Real Estate Costs SegmentCorporateExpensesClosedCompaniesRealEstateCosts	4000000	USD
CY2011	ati	Segment Corporate Expenses Closed Companies Real Estate Costs SegmentCorporateExpensesClosedCompaniesRealEstateCosts		USD
CY2010	ati	Segment Corporate Expenses Closed Companies Real Estate Costs SegmentCorporateExpensesClosedCompaniesRealEstateCosts	2800000	USD
CY2012	ati	Segment Corporate Expenses Other SegmentCorporateExpensesOther	10200000	USD
CY2011	ati	Segment Corporate Expenses Other SegmentCorporateExpensesOther	5000000	USD
CY2010	ati	Segment Corporate Expenses Other SegmentCorporateExpensesOther	9000000	USD
CY2012Q4	us-gaap	Long Lived Assets Held For Sale Impairment Charge LongLivedAssetsHeldForSaleImpairmentCharge	13000000	USD
CY2012	ati	Corporate Expenses CorporateExpenses	-68400000	USD
CY2012	ati	Other Expense OtherExpense	-31500000	USD
CY2012	ati	Retirement Benefit Expense RetirementBenefitExpense	-122400000	USD
CY2012	ati	Income Before Income Taxes IncomeBeforeIncomeTaxes	244000000	USD
CY2010	ati	Corporate Expenses CorporateExpenses	-64100000	USD
CY2010	ati	Other Expense OtherExpense	-13900000	USD
CY2010	ati	Retirement Benefit Expense RetirementBenefitExpense	-90100000	USD
CY2010	ati	Income Before Income Taxes IncomeBeforeIncomeTaxes	125700000	USD
CY2011	ati	Corporate Expenses CorporateExpenses	-92500000	USD
CY2011	ati	Other Expense OtherExpense	-9900000	USD
CY2011	ati	Retirement Benefit Expense RetirementBenefitExpense	-77900000	USD
CY2011	ati	Income Before Income Taxes IncomeBeforeIncomeTaxes	339400000	USD
CY2010Q4	us-gaap	Assets Assets	4493600000	USD
CY2012	ati	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Percentage Amount EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesPercentageAmount	1.00
CY2011	ati	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Percentage Amount EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesPercentageAmount	1.00
CY2010	ati	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Percentage Amount EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesPercentageAmount	1.00
CY2010Q4	ati	Entity Wide Disclosure On Geographic Areas Total Assets Attributed To Individual Countries Percentage Amount EntityWideDisclosureOnGeographicAreasTotalAssetsAttributedToIndividualCountriesPercentageAmount	1.00
CY2011Q4	ati	Entity Wide Disclosure On Geographic Areas Total Assets Attributed To Individual Countries Percentage Amount EntityWideDisclosureOnGeographicAreasTotalAssetsAttributedToIndividualCountriesPercentageAmount	1.00
CY2012Q4	ati	Entity Wide Disclosure On Geographic Areas Total Assets Attributed To Individual Countries Percentage Amount EntityWideDisclosureOnGeographicAreasTotalAssetsAttributedToIndividualCountriesPercentageAmount	1.00
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	106100000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	116600000	shares
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	166900000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	70700000	USD
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	102500000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	113900000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	98700000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97400000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	900000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1800000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1300000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	9600000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	9600000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	224200000	USD
CY2012	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	8500000	USD
CY2011	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	9900000	USD
CY2010	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	USD
CY2012	ati	Cash Flows Provided By Used In Operating Activities CashFlowsProvidedByUsedInOperatingActivities	427500000	USD
CY2012	ati	Condensed Statements Of Cash Flows Increase Decrease In Cash And Cash Equivalents CondensedStatementsOfCashFlowsIncreaseDecreaseInCashAndCashEquivalents	-76000000	USD
CY2011	ati	Cash Flows Provided By Used In Operating Activities CashFlowsProvidedByUsedInOperatingActivities	296800000	USD
CY2011	ati	Condensed Statements Of Cash Flows Increase Decrease In Cash And Cash Equivalents CondensedStatementsOfCashFlowsIncreaseDecreaseInCashAndCashEquivalents	-51700000	USD
CY2010	ati	Condensed Statements Of Cash Flows Increase Decrease In Cash And Cash Equivalents CondensedStatementsOfCashFlowsIncreaseDecreaseInCashAndCashEquivalents	-276500000	USD
CY2010	ati	Cash Flows Provided By Used In Operating Activities CashFlowsProvidedByUsedInOperatingActivities	27100000	USD
CY2012	us-gaap	Unrecorded Unconditional Purchase Obligation Description UnrecordedUnconditionalPurchaseObligationDescription	Commitments for expenditures on property, plant and equipment
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	25000000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	21400000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	21100000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	17600000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	15500000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	14900000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	13700000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	6200000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	28300000	USD
CY2012Q4	ati	Environmental Remediation Obligation Federal Superfund Sites EnvironmentalRemediationObligationFederalSuperfundSites	6000000	USD
CY2012Q4	ati	Environmental Remediation Obligations For Ongoing Operations EnvironmentalRemediationObligationsForOngoingOperations	1000000	USD
CY2012Q4	ati	Environmental Remediation Obligation For Owned Or Controlled Sites With Closed Operations EnvironmentalRemediationObligationForOwnedOrControlledSitesWithClosedOperations	2000000	USD
CY2012Q4	ati	Environmental Remediation Obligation For Formerly Owned Sites EnvironmentalRemediationObligationForFormerlyOwnedSites	7000000	USD
CY2012Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	16000000	USD
CY2012Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	10000000	USD
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	543600000	USD
CY2012Q1	us-gaap	Gross Profit GrossProfit	207000000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	56200000	USD
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.53
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.50
CY2012Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	106746877	shares
CY2012Q2	us-gaap	Sales Revenue Net SalesRevenueNet	1357400000	USD
CY2012Q2	us-gaap	Gross Profit GrossProfit	198900000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	56400000	USD
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.53
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	107125436	shares
CY2012Q3	us-gaap	Sales Revenue Net SalesRevenueNet	1220500000	USD
CY2012Q3	us-gaap	Gross Profit GrossProfit	162800000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	35300000	USD
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	107185585	shares
CY2011Q1	us-gaap	Sales Revenue Net SalesRevenueNet	1227400000	USD
CY2011Q1	us-gaap	Gross Profit GrossProfit	205400000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	56300000	USD
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2011Q2	us-gaap	Sales Revenue Net SalesRevenueNet	1351600000	USD
CY2011Q2	us-gaap	Gross Profit GrossProfit	223000000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	64000000	USD
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2011Q3	us-gaap	Sales Revenue Net SalesRevenueNet	1352600000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	215800000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	62300000	USD
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	106341817	shares
CY2011Q4	us-gaap	Sales Revenue Net SalesRevenueNet	1251400000	USD
CY2011Q4	us-gaap	Gross Profit GrossProfit	169000000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	31700000	USD
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2011Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	106358868	shares
CY2011Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	98767947	shares
CY2011Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103405003	shares
CY2012Q4	us-gaap	Sales Revenue Net SalesRevenueNet	1101100000	USD
CY2012Q4	us-gaap	Gross Profit GrossProfit	124500000	USD
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2012Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	107321941	shares
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	10500000	USD
CY2012Q1	us-gaap	Sales Revenue Net SalesRevenueNet	1352500000	USD
CY2011Q4	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	1700000	USD
CY2011Q4	us-gaap	Business Combination Separately Recognized Transactions Expenses And Losses Recognized BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized	1100000	USD
CY2011Q3	us-gaap	Business Combination Separately Recognized Transactions Expenses And Losses Recognized BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized	8300000	USD
CY2011Q2	us-gaap	Business Combination Separately Recognized Transactions Expenses And Losses Recognized BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized	12700000	USD
CY2011Q1	ati	Accelerated Share Based Compensation Expense Netof Tax AcceleratedShareBasedCompensationExpenseNetofTax	3100000	USD
CY2011Q1	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2700000	USD

Files In Submission

Name	View Source	Status
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$ATI
ATI INC Stock $ati

2012 Q4 Form 10-K Financial Statement

#000119312513084310 Filed on February 28, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ATI ATI INC Stock $ati

2012 Q4 Form 10-K Financial Statement

#000119312513084310 Filed on February 28, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ATI
ATI INC Stock $ati