v2.4.0.6

Marketable Securities Available for Sales and Trading (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2011 | Mar. 31, 2012 Level 1 [Member] | Dec. 31, 2011 Level 1 [Member] | Mar. 31, 2012 Level 2 [Member] | Dec. 31, 2011 Level 2 [Member] | Mar. 31, 2012 Level 3 [Member] | Dec. 31, 2011 Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Level 1 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Level 1 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Level 2 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Level 2 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Level 3 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] US government and agencies [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] US government and agencies [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] US government and agencies [Member] Level 1 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] US government and agencies [Member] Level 1 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] US government and agencies [Member] Level 2 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] US government and agencies [Member] Level 2 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] US government and agencies [Member] Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] US government and agencies [Member] Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Sovereign debt [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Sovereign debt [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Sovereign debt [Member] Level 1 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Sovereign debt [Member] Level 1 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Sovereign debt [Member] Level 2 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Sovereign debt [Member] Level 2 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Sovereign debt [Member] Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Sovereign debt [Member] Level 3 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] Level 1 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] Level 1 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] Level 2 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] Level 2 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Certificates of Deposit [Member] Level 3 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Money Market Funds [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Money Market Funds [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Money Market Funds [Member] Level 1 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Money Market Funds [Member] Level 1 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Money Market Funds [Member] Level 2 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Money Market Funds [Member] Level 2 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Money Market Funds [Member] Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Money Market Funds [Member] Level 3 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Commercial Paper [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Commercial Paper [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Commercial Paper [Member] Level 1 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Commercial Paper [Member] Level 1 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Commercial Paper [Member] Level 2 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Commercial Paper [Member] Level 2 [Member] | Mar. 31, 2012 Cash and Cash Equivalents [Member] Commercial Paper [Member] Level 3 [Member] | Dec. 31, 2011 Cash and Cash Equivalents [Member] Commercial Paper [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Level 1 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Level 2 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Level 3 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] US government and agencies [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] US government and agencies [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] US government and agencies [Member] Level 1 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] US government and agencies [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] US government and agencies [Member] Level 2 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] US government and agencies [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] US government and agencies [Member] Level 3 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] US government and agencies [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Sovereign debt [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Sovereign debt [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Sovereign debt [Member] Level 1 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Sovereign debt [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Sovereign debt [Member] Level 2 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Sovereign debt [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Sovereign debt [Member] Level 3 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Sovereign debt [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Certificates of Deposit [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Certificates of Deposit [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Certificates of Deposit [Member] Level 1 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Certificates of Deposit [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Certificates of Deposit [Member] Level 2 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Certificates of Deposit [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Certificates of Deposit [Member] Level 3 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Certificates of Deposit [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Corporate Debt [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Corporate Debt [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Corporate Debt [Member] Level 1 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Corporate Debt [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Corporate Debt [Member] Level 2 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Corporate Debt [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Corporate Debt [Member] Level 3 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Corporate Debt [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Equity [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Equity [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Equity [Member] Level 1 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Equity [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Equity [Member] Level 2 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Equity [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Equity [Member] Level 3 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Equity [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Other Debt [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Other Debt [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Other Debt [Member] Level 1 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Other Debt [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Other Debt [Member] Level 2 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Other Debt [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Current [Member] Other Debt [Member] Level 3 [Member] | Dec. 31, 2011 Marketable Securities - Current [Member] Other Debt [Member] Level 3 [Member] | Mar. 31, 2012 Marketable Securities - Noncurrent [Member] | Mar. 31, 2012 Marketable Securities - Noncurrent [Member] Equity [Member] | Mar. 31, 2012 Marketable Securities - Noncurrent [Member] Equity [Member] Level 1 [Member] | Mar. 31, 2012 Marketable Securities - Noncurrent [Member] Equity [Member] Level 2 [Member] | Mar. 31, 2012 Marketable Securities - Noncurrent [Member] Equity [Member] Level 3 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Level 1 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Level 1 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Level 2 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Level 2 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Level 3 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Level 3 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Sovereign debt [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Sovereign debt [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Sovereign debt [Member] Level 1 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Sovereign debt [Member] Level 1 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Sovereign debt [Member] Level 2 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Sovereign debt [Member] Level 2 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Sovereign debt [Member] Level 3 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Sovereign debt [Member] Level 3 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Money Market Funds [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Money Market Funds [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Money Market Funds [Member] Level 1 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Money Market Funds [Member] Level 1 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Money Market Funds [Member] Level 2 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Money Market Funds [Member] Level 2 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Money Market Funds [Member] Level 3 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Money Market Funds [Member] Level 3 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] Level 1 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] Level 1 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] Level 2 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] Level 2 [Member] | Mar. 31, 2012 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] Level 3 [Member] | Dec. 31, 2011 Restricted cash and cash equivalent [Member] Other restricted marketable securities [Member] Level 3 [Member]
Available For Sale and Trading Securities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | $ 19,041 |  |  |  |  |  |  |  |  | $ 9,663 | $ 11,980 |  |  |  |  |  |  | $ 5,001 | $ 239 |  |  |  |  |  |  | $ 490 | $ 380 |  |  |  |  |  |  | $ 438 | $ 2,028 |  |  |  |  |  |  | $ 981 | $ 1,794 |  |  |  |  |  |  | $ 5,180 | $ 5,112 |  |  |  |  |  |  | $ 8,001 | $ 10,101 |  |  |  |  |  |  | $ 3,622 | $ 5,214 |  |  |  |  |  |  | $ 77 | $ 143 |  |  |  |  |  |  | $ 42 | $ 178 |  |  |  |  |  |  | $ 4,260 | $ 4,566 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 404 | $ 404 |  |  |  | $ 1,443 | $ 1,539 |  |  |  |  |  |  | $ 16 | $ 15 |  |  |  |  |  |  | $ 1,264 | $ 1,363 |  |  |  |  |  |  | $ 163 | $ 161 |  |  |  |  |  |
Available-for-sale Securities, Gross Unrealized Gains |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 7 | 5 |  |  |  |  |  |  | 1 | 2 |  |  |  |  |  |  | 1 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 5 | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  | 0 | 3 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 3 |  |  |  |  |  |
Available-for-sale Securities, Gross Unrealized Losses |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 3 | 4 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 3 | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 | 5 |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 19,046 |  |  |  |  |  |  |  |  | 9,663 |  |  | 1,794 |  | 7,869 |  | 0 | 5,001 | 239 | 0 | 0 | 5,001 | 239 | 0 | 0 | 490 | 380 | 0 | 0 | 380 | 490 | 0 | 0 | 438 | 2,028 | 0 | 0 | 438 | 2,028 | 0 | 0 | 981 | 1,794 | 981 | 1,794 | 0 | 0 | 0 | 0 | 5,180 | 5,112 | 0 | 0 | 5,180 | 5,112 | 0 | 0 | 8,005 | 10,102 | 0 | 0 | 8,005 | 10,102 | 0 | 0 | 3,623 | 5,216 | 0 | 0 | 3,623 | 5,216 | 0 | 0 | 78 | 143 | 0 | 0 | 78 | 143 | 0 | 0 | 42 | 178 | 0 | 0 | 42 | 178 | 0 | 0 | 4,262 | 4,565 | 0 | 0 | 4,262 | 4,565 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 399 | 399 | 0 | 0 | 1,443 | 1,542 | 1,264 | 1,363 | 179 | 179 | 0 | 0 | 16 | 15 | 0 | 0 | 16 | 15 | 0 | 0 | 1,264 | 1,363 | 1,264 | 1,363 | 0 | 0 | 0 | 0 | 163 | 164 | 0 | 0 | 163 | 164 | 0 | 0
Total Marketable Securities, Noncurrent | 399 |  |  | 399 |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Marketable Securities | 15,085 |  |  | 438 |  | 14,647 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading Securities, Unrealized Holding Gain |  |  |  |  |  |  |  |  |  | 8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 97 | 19 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 91 | 18 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 | 0 |  |  |  |  |  |  | 1 | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading Securities, Unrealized Holding Loss |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 | 40 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 | 33 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 5 |  |  |  |  |  |  | 0 | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading Securities, Fair Value |  |  |  |  |  |  |  |  |  | 497 |  |  | 0 |  | 497 |  | 0 |  |  |  |  |  |  |  |  | 497 |  |  | 0 |  | 497 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,681 | 6,046 | 39 | 34 | 6,642 | 6,012 | 0 | 0 |  |  |  |  |  |  |  |  | 6,565 | 5,936 | 0 | 0 | 6,565 | 5,936 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39 | 34 | 39 | 34 | 0 | 0 | 0 | 0 | 77 | 76 | 0 | 0 | 77 | 76 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total marketable securities classified as cash equivalent, fair value |  |  |  |  |  |  |  |  |  | 10,160 | 11,980 | 981 | 1,794 | 10,999 | 8,366 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash, time deposits, and other cash equivalents | 5,398 |  | 5,911 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Cash and Cash Equivalents | 17,378 |  | 16,071 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Marketable Securities - Current | 14,686 |  | 16,148 | 39 | 34 | 14,647 | 16,114 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Restricted Cash and Marketable Securities | 2,075 |  | 2,233 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Cash - Other | 632 |  | 691 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Cash and Investments, Current | 924 |  | 1,005 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Cash and Investments, Noncurrent | 1,151 |  | 1,228 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading Securities Pledged as Collateral | 84 |  | 84 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letters of Credit Outstanding Amount | 70 |  | 70 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities Sale Proceeds | 427 | 117 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Due in One Year, Amortized Cost | 16,897 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Due after One Through Five Years, Amortized Cost | 2,144 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Due in One Year, Fair Value | 16,898 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Due after One Through Five Years, Fair Value | $ 2,148 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. + References No definition available. + Details
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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 7 -Footnote 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition This item represents the fair value of debt securities which are expected to mature after one year and through five years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 20 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a),(d) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 + Details
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- Definition This item represents debt securities, at cost, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments, as defined), and fair value hedge accounting adjustments, if any, which are expected to mature within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 7 -Footnote 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 20 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 + Details
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