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Goodwill and Other Intangible Assets - Additional Information (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
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Dec. 31, 2013
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Dec. 31, 2012
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Jun. 30, 2013
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| Goodwill [Line Items] | |||||
| Amortization of intangible assets | $ 129 | $ 125 | $ 263 | $ 253 | |
| Allocated to goodwill | $ 56,293 | $ 56,293 | $ 55,188 | ||
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Batteries [Member]
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| Goodwill [Line Items] | |||||
| Percent reduction of market value of goodwill due to impairment | 6.00% | ||||