Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions | Jun. 30, 2015 | Jun. 30, 2014 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | $ 104,369 | $ 92,164 |
Gross | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 104,531 | 92,319 |
Gross | Derivatives and other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Liabilities | | 218 | 284 |
Gross | Mutual funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 1,100 | 590 |
Gross | Commercial paper | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 1 | 189 |
Gross | Certificates of deposit | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 906 | 1,197 |
Gross | U.S. government and agency securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 72,885 | 67,033 |
Gross | Foreign government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 5,430 | 3,349 |
Gross | Mortgage- and asset-backed securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 4,917 | 1,015 |
Gross | Corporate notes and bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 7,109 | 6,863 |
Gross | Municipal securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 319 | 332 |
Gross | Common and preferred stock | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 10,876 | 11,391 |
Gross | Derivatives | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 988 | 360 |
Gross | Level 1 | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 81,750 | 76,574 |
Gross | Level 1 | Derivatives and other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Liabilities | | 5 | 5 |
Gross | Level 1 | Mutual funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 1,100 | 590 |
Gross | Level 1 | Commercial paper | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 1 | Certificates of deposit | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 1 | U.S. government and agency securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 71,930 | 66,288 |
Gross | Level 1 | Foreign government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 131 | 139 |
Gross | Level 1 | Mortgage- and asset-backed securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 1 | Corporate notes and bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 1 | Municipal securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 1 | Common and preferred stock | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 8,585 | 9,552 |
Gross | Level 1 | Derivatives | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 4 | 5 |
Gross | Level 2 | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 22,761 | 15,724 |
Gross | Level 2 | Derivatives and other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Liabilities | | 159 | 153 |
Gross | Level 2 | Mutual funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 2 | Commercial paper | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 1 | 189 |
Gross | Level 2 | Certificates of deposit | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 906 | 1,197 |
Gross | Level 2 | U.S. government and agency securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 955 | 745 |
Gross | Level 2 | Foreign government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 5,299 | 3,210 |
Gross | Level 2 | Mortgage- and asset-backed securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 4,917 | 1,015 |
Gross | Level 2 | Corporate notes and bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 7,108 | 6,863 |
Gross | Level 2 | Municipal securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 319 | 332 |
Gross | Level 2 | Common and preferred stock | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 2,277 | 1,825 |
Gross | Level 2 | Derivatives | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 979 | 348 |
Gross | Level 3 | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 20 | 21 |
Gross | Level 3 | Derivatives and other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Liabilities | | 54 | 126 |
Gross | Level 3 | Mutual funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 3 | Commercial paper | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 3 | Certificates of deposit | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 3 | U.S. government and agency securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 3 | Foreign government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 3 | Mortgage- and asset-backed securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 3 | Corporate notes and bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 1 | 0 |
Gross | Level 3 | Municipal securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 0 | 0 |
Gross | Level 3 | Common and preferred stock | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 14 | 14 |
Gross | Level 3 | Derivatives | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 5 | 7 |
Netting | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | (162) | (155) |
Netting | Derivatives and other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Liabilities | [1] | (161) | (155) |
Netting | Mutual funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Commercial paper | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Certificates of deposit | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | U.S. government and agency securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Foreign government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Mortgage- and asset-backed securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Corporate notes and bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Municipal securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Common and preferred stock | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | 0 | 0 |
Netting | Derivatives | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | [1] | (162) | (155) |
Net | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 104,369 | 92,164 |
Net | Derivatives and other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Liabilities | | 57 | 129 |
Net | Mutual funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 1,100 | 590 |
Net | Commercial paper | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 1 | 189 |
Net | Certificates of deposit | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 906 | 1,197 |
Net | U.S. government and agency securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 72,885 | 67,033 |
Net | Foreign government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 5,430 | 3,349 |
Net | Mortgage- and asset-backed securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 4,917 | 1,015 |
Net | Corporate notes and bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 7,109 | 6,863 |
Net | Municipal securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 319 | 332 |
Net | Common and preferred stock | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | 10,876 | 11,391 |
Net | Derivatives | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Assets | | $ 826 | $ 205 |
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[1] | These amounts represent the impact of netting derivative assets and derivative liabilities when a legally enforceable master netting agreement exists and fair value adjustments related to our own credit risk and counterparty credit risk. | |