Derivative Instruments (Details)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2011
USD ($)
|
Jun. 30, 2011
Other Long Term Asset [Member]
USD ($)
|
Dec. 31, 2010
Other Long Term Asset [Member]
USD ($)
|
Jun. 30, 2011
Other Long Term Asset [Member]
Diesel Fixed Forward Contracts [Member]
USD ($)
|
Dec. 31, 2010
Other Long Term Asset [Member]
Diesel Fixed Forward Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Long Term Asset [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Dec. 31, 2010
Other Long Term Asset [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Long Term Asset [Member]
NZ Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Dec. 31, 2010
Other Long Term Asset [Member]
NZ Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Current Asset [Member]
USD ($)
|
Dec. 31, 2010
Other Current Asset [Member]
USD ($)
|
Jun. 30, 2011
Other Current Asset [Member]
Diesel Fixed Forward Contracts [Member]
USD ($)
|
Dec. 31, 2010
Other Current Asset [Member]
Diesel Fixed Forward Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Current Asset [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Dec. 31, 2010
Other Current Asset [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Current Asset [Member]
NZ Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Dec. 31, 2010
Other Current Asset [Member]
NZ Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Dec. 31, 2010
Other Current Asset [Member]
Interest Rate Swap Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Current Asset [Member]
Forward Starting Swap Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Current Liabilities [Member]
USD ($)
|
Jun. 30, 2011
Other Current Liabilities [Member]
Diesel Fixed Forward Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Current Liabilities [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
USD ($)
|
Jun. 30, 2011
Other Current Liabilities [Member]
Forward Starting Swap Contracts [Member]
USD ($)
|
Jun. 30, 2011
Gold [Member]
USD ($)
oz
|
Jun. 30, 2011
Gold [Member]
USD ($)
oz
|
Jun. 30, 2011
Copper [Member]
USD ($)
lb
|
Jun. 30, 2011
Copper [Member]
USD ($)
lb
|
Jun. 30, 2011
Expected Maturity Date Year 2011 [Member]
Diesel Fixed Forward Contracts [Member]
gal
|
Jun. 30, 2011
Expected Maturity Date Year 2011 [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Expected Maturity Date Year 2011 [Member]
AU Dollar Akyem Capital Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Expected Maturity Date Year 2011 [Member]
NZ Dollar Operating Fixed Forward Contracts [Member]
NZD
|
Jun. 30, 2011
Expected Maturity Date Year 2012 [Member]
Diesel Fixed Forward Contracts [Member]
gal
|
Jun. 30, 2011
Expected Maturity Date Year 2012 [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Expected Maturity Date Year 2012 [Member]
AU Dollar Akyem Capital Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Expected Maturity Date Year 2012 [Member]
NZ Dollar Operating Fixed Forward Contracts [Member]
NZD
|
Jun. 30, 2011
Expected Maturity Date Year 2013 [Member]
Diesel Fixed Forward Contracts [Member]
gal
|
Jun. 30, 2011
Expected Maturity Date Year 2013 [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Expected Maturity Date Year 2013 [Member]
NZ Dollar Operating Fixed Forward Contracts [Member]
NZD
|
Jun. 30, 2011
Expected Maturity Date Year 2014 [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Expected Maturity Date Year 2015 [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Expected Maturity Date Year 2016 [Member]
AU Dollar Operating Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
Diesel Fixed Forward Contracts [Member]
gal
|
Jun. 30, 2011
Diesel Fixed Forward Contracts [Member]
Cash Flow Hedging [Member]
USD ($)
|
Jun. 30, 2010
Diesel Fixed Forward Contracts [Member]
Cash Flow Hedging [Member]
USD ($)
|
Jun. 30, 2011
Diesel Fixed Forward Contracts [Member]
Cash Flow Hedging [Member]
USD ($)
|
Jun. 30, 2010
Diesel Fixed Forward Contracts [Member]
Cash Flow Hedging [Member]
USD ($)
|
Jun. 30, 2011
AU Dollar Operating Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
AU Dollar Akyem Capital Fixed Forward Contracts [Member]
AUD
|
Jun. 30, 2011
NZ Dollar Operating Fixed Forward Contracts [Member]
NZD
|
Jun. 30, 2011
Interest Rate Swap Contracts [Member]
USD ($)
|
Jun. 30, 2011
Interest Rate Swap Contracts [Member]
Fair Value Hedging [Member]
USD ($)
|
Jun. 30, 2010
Interest Rate Swap Contracts [Member]
Fair Value Hedging [Member]
USD ($)
|
Jun. 30, 2011
Interest Rate Swap Contracts [Member]
Fair Value Hedging [Member]
USD ($)
|
Jun. 30, 2010
Interest Rate Swap Contracts [Member]
Fair Value Hedging [Member]
USD ($)
|
Jun. 30, 2011
Forward Starting Swap Contracts [Member]
Cash Flow Hedging [Member]
USD ($)
|
Jun. 30, 2010
Forward Starting Swap Contracts [Member]
Cash Flow Hedging [Member]
USD ($)
|
Jun. 30, 2011
Fair Value Hedging [Member]
Debentures 8 5/8% (Hedged Portion) [Member]
USD ($)
|
Jun. 30, 2010
Fair Value Hedging [Member]
Debentures 8 5/8% (Hedged Portion) [Member]
USD ($)
|
Jun. 30, 2011
Fair Value Hedging [Member]
Debentures 8 5/8% (Hedged Portion) [Member]
USD ($)
|
Jun. 30, 2010
Fair Value Hedging [Member]
Debentures 8 5/8% (Hedged Portion) [Member]
USD ($)
|
Jun. 30, 2011
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
USD ($)
|
Jun. 30, 2010
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
USD ($)
|
Jun. 30, 2011
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
USD ($)
|
Jun. 30, 2010
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
USD ($)
|
|
Foreign Currency Derivatives Abstract | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Average rate | 2.51 | 0.86 | 1.04 | 0.71 | 2.68 | 0.88 | 1.02 | 0.73 | 3.19 | 0.90 | 0.77 | 0.87 | 0.84 | 0.88 | 2.62 | 0.88 | 1.03 | 0.72 | ||||||||||||||||||||||||||||||||||||||||||||||
Notional Amount of Foreign Currency Derivatives | 594 | 10 | 37 | 947 | 18 | 41 | 665 | 6 | 436 | 204 | 25 | 2,871 | 28 | 84 | ||||||||||||||||||||||||||||||||||||||||||||||||||
Expected hedge ratio | 53.00% | 82.00% | 34.00% | 66.00% | 25.00% | 64.00% | 41.00% | 35.00% | 5.00% | 44.00% | 10.00% | 30.00% | 14.00% | 3.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||
Diesel Derivative Contracts Outstanding | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Average rate | 2.51 | 0.86 | 1.04 | 0.71 | 2.68 | 0.88 | 1.02 | 0.73 | 3.19 | 0.90 | 0.77 | 0.87 | 0.84 | 0.88 | 2.62 | 0.88 | 1.03 | 0.72 | ||||||||||||||||||||||||||||||||||||||||||||||
Diesel gallons | 11,000,000 | 11,000,000 | 1,000,000 | 23,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Expected hedge ratio | 53.00% | 82.00% | 34.00% | 66.00% | 25.00% | 64.00% | 41.00% | 35.00% | 5.00% | 44.00% | 10.00% | 30.00% | 14.00% | 3.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||
Fair values of Derivative Instruments Designated as Hedges | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Other Current and Long Term Assets | 167 | 116 | 1 | 1 | 165 | 114 | 1 | 1 | 226 | 196 | 11 | 7 | 204 | 181 | 7 | 5 | 3 | 4 | ||||||||||||||||||||||||||||||||||||||||||||||
Other Current and Long Term Liabilities | 17 | 1 | 1 | 15 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Derivative Instruments (Textuals) [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hedge contracts net liability position | 11 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Forward starting swaps notional amount | 1,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fixed to floating swap contracts, amount | 222 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Average price | 1,506.00 | 1,445.00 | 4.14 | 4.26 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Recorded average provisional price | 1,500.00 | 1,441.00 | 4.22 | 4.31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Provisional pricing mark-to-market gain (loss) | 10 | 18 | 16 | 28 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Provisional pricing mark-to-market gain (loss) rate | 7 | 6 | 0.21 | 0.16 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Provisional pricing quantity sales | 105,000 | 105,000 | 84,000,000 | 84,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Average price, subject to final pricing | 1,506.00 | 1,506.00 | 4.22 | 4.22 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Approximate gain amount to be reclassified from accumulated other comprehensive income, net of tax to income | 146 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Location and Amount of Gains (Losses) Reported in Condensed Consolidated Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gain (loss) recognized in other comprehensive income (effective portion) | (5) | (6) | 10 | (5) | 126 | (99) | 193 | (58) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gain (loss) reclassified from Accumulated other comprehensive income into income (effective portion) | 5 | 1 | 9 | 2 | 49 | 21 | 91 | 45 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gains (Losses) Recorded for Hedged Item Related to Fair Value Hedges | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gain (loss) recognized in income (effective portion) | 1 | 1 | 3 | 3 | (1) | 2 | (6) | 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gain (loss) recognized in income (ineffective portion) | $ (1) | $ (2) | $ (2) | $ (2) | $ 0 | $ 1 | $ 0 | $ 1 |