v2.3.0.15
Risk Management Activities and Fair Value Measurements - Financial Assets and Liabilities that are Measured at Fair Value on a Recurring Basis (Detail) (USD $)
In Millions
Sep. 30, 2011
Jun. 30, 2011
Assets at fair value:  
Investment securities$ 33$ 39
Total assets at fair value385[1]389[1]
Liabilities at fair value:  
Total liabilities at fair value720[2]301[2]
Fair Value, Inputs, Level 1
  
Assets at fair value:  
Investment securities1016
Total assets at fair value10[1]16[1]
Liabilities at fair value:  
Total liabilities at fair value0[2]0[2]
Fair Value, Inputs, Level 1 | Foreign currency hedges
  
Assets at fair value:  
Derivative assets00
Liabilities at fair value:  
Derivative liabilities00
Fair Value, Inputs, Level 1 | Other Foreign Currency Instruments
  
Assets at fair value:  
Derivative assets0[3]0[3]
Liabilities at fair value:  
Derivative liabilities0[3]0[3]
Fair Value, Inputs, Level 1 | Interest Rate
  
Assets at fair value:  
Derivative assets00
Fair Value, Inputs, Level 1 | Derivatives in Net Investment Hedging Relationships
  
Assets at fair value:  
Derivative assets00
Liabilities at fair value:  
Derivative liabilities00
Fair Value, Inputs, Level 1 | Commodities
  
Assets at fair value:  
Derivative assets00
Liabilities at fair value:  
Derivative liabilities00
Fair Value, Inputs, Level 2
  
Assets at fair value:  
Investment securities00
Total assets at fair value352[1]350[1]
Liabilities at fair value:  
Total liabilities at fair value720[2]301[2]
Fair Value, Inputs, Level 2 | Foreign currency hedges
  
Assets at fair value:  
Derivative assets01
Liabilities at fair value:  
Derivative liabilities174119
Fair Value, Inputs, Level 2 | Other Foreign Currency Instruments
  
Assets at fair value:  
Derivative assets49[3]182[3]
Liabilities at fair value:  
Derivative liabilities361[3]43[3]
Fair Value, Inputs, Level 2 | Interest Rate
  
Assets at fair value:  
Derivative assets295163
Fair Value, Inputs, Level 2 | Derivatives in Net Investment Hedging Relationships
  
Assets at fair value:  
Derivative assets50
Liabilities at fair value:  
Derivative liabilities182138
Fair Value, Inputs, Level 2 | Commodities
  
Assets at fair value:  
Derivative assets34
Liabilities at fair value:  
Derivative liabilities31
Fair Value, Inputs, Level 3
  
Assets at fair value:  
Investment securities2323
Total assets at fair value23[1]23[1]
Liabilities at fair value:  
Total liabilities at fair value0[2]0[2]
Fair Value, Inputs, Level 3 | Foreign currency hedges
  
Assets at fair value:  
Derivative assets00
Liabilities at fair value:  
Derivative liabilities00
Fair Value, Inputs, Level 3 | Other Foreign Currency Instruments
  
Assets at fair value:  
Derivative assets0[3]0[3]
Liabilities at fair value:  
Derivative liabilities0[3]0[3]
Fair Value, Inputs, Level 3 | Interest Rate
  
Assets at fair value:  
Derivative assets00
Fair Value, Inputs, Level 3 | Derivatives in Net Investment Hedging Relationships
  
Assets at fair value:  
Derivative assets00
Liabilities at fair value:  
Derivative liabilities00
Fair Value, Inputs, Level 3 | Commodities
  
Assets at fair value:  
Derivative assets00
Liabilities at fair value:  
Derivative liabilities00
Foreign currency hedges
  
Assets at fair value:  
Derivative assets01
Liabilities at fair value:  
Derivative liabilities174119
Other Foreign Currency Instruments
  
Assets at fair value:  
Derivative assets49[3]182[3]
Liabilities at fair value:  
Derivative liabilities361[3]43[3]
Interest Rate
  
Assets at fair value:  
Derivative assets295163
Derivatives in Net Investment Hedging Relationships
  
Assets at fair value:  
Derivative assets50
Liabilities at fair value:  
Derivative liabilities182138
Commodities
  
Assets at fair value:  
Derivative assets34
Liabilities at fair value:  
Derivative liabilities$ 3$ 1
[1]Investment securities are presented in other noncurrent assets and all derivative assets are presented in prepaid expenses and other current assets or other noncurrent assets.
[2]All liabilities are presented in accrued and other liabilities or other noncurrent liabilities.
[3]Other foreign currency instruments are comprised of foreign currency financial instruments that do not qualify as hedges.