|
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
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Mar. 31, 2011
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Dec. 31, 2011
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Mar. 31, 2012
Level 1 [Member]
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Dec. 31, 2011
Level 1 [Member]
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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]
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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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||