XML 35 R24.htm IDEA: XBRL DOCUMENT
v3.21.1

Investments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract] |
Schedule Of Amortized Cost And Fair Value Of HTM Fixed Maturities And Related OTTI Recognized In AOCI |
March 31, 2021 | Amortized Cost |  | Valuation Allowance |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |  |  |
(in millions of U.S. dollars) |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 2,413 |  |  | $ | — |  |  | $ | 121 |  |  | $ | (7) |  |  | $ | 2,527 |  |  |  |
Non-U.S. | 25,147 |  |  | (6) |  |  | 1,214 |  |  | (189) |  |  | 26,166 |  |  |  |
Corporate and asset-backed securities | 35,224 |  |  | (9) |  |  | 1,474 |  |  | (289) |  |  | 36,400 |  |  |  |
Mortgage-backed securities | 18,788 |  |  | — |  |  | 738 |  |  | (89) |  |  | 19,437 |  |  |  |
Municipal | 6,301 |  |  | — |  |  | 254 |  |  | (14) |  |  | 6,541 |  |  |  |
| $ | 87,873 |  |  | $ | (15) |  |  | $ | 3,801 |  |  | $ | (588) |  |  | $ | 91,071 |  |  |  |
| Amortized Cost |  | Valuation Allowance |  | Net Carrying Value |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |
Held to maturity |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 1,158 |  |  | $ | — |  |  | $ | 1,158 |  |  | $ | 39 |  |  | $ | — |  |  | $ | 1,197 |  |
Non-U.S. | 1,276 |  |  | (6) |  |  | 1,270 |  |  | 82 |  |  | (1) |  |  | 1,351 |  |
Corporate and asset-backed securities | 2,163 |  |  | (35) |  |  | 2,128 |  |  | 183 |  |  | — |  |  | 2,311 |  |
Mortgage-backed securities | 1,888 |  |  | (1) |  |  | 1,887 |  |  | 110 |  |  | — |  |  | 1,997 |  |
Municipal | 4,690 |  |  | (1) |  |  | 4,689 |  |  | 207 |  |  | — |  |  | 4,896 |  |
| $ | 11,175 |  |  | $ | (43) |  |  | $ | 11,132 |  |  | $ | 621 |  |  | $ | (1) |  |  | $ | 11,752 |  |
December 31, 2020 | Amortized Cost |  | Valuation Allowance |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |  |
(in millions of U.S. dollars) |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 2,471 |  |  | $ | — |  |  | $ | 199 |  |  | $ | — |  |  | $ | 2,670 |  |  |
Non-U.S. | 24,594 |  |  | (6) |  |  | 1,808 |  |  | (42) |  |  | 26,354 |  |  |
Corporate and asset-backed securities | 34,095 |  |  | (14) |  |  | 2,322 |  |  | (72) |  |  | 36,331 |  |  |
Mortgage-backed securities | 17,456 |  |  | — |  |  | 1,022 |  |  | (8) |  |  | 18,470 |  |  |
Municipal | 6,572 |  |  | — |  |  | 304 |  |  | (2) |  |  | 6,874 |  |  |
| $ | 85,188 |  |  | $ | (20) |  |  | $ | 5,655 |  |  | $ | (124) |  |  | $ | 90,699 |  |  |
| Amortized Cost |  | Valuation Allowance |  | Net Carrying Value |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value
Held to maturity |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 1,392 |  |  | $ | — |  |  | $ | 1,392 |  |  | $ | 60 |  |  | $ | — |  |  | $ | 1,452 |
Non-U.S. | 1,295 |  |  | (7) |  |  | 1,288 |  |  | 118 |  |  | (1) |  |  | 1,405 |
Corporate and asset-backed securities | 2,185 |  |  | (35) |  |  | 2,150 |  |  | 288 |  |  | — |  |  | 2,438 |
Mortgage-backed securities | 2,000 |  |  | (1) |  |  | 1,999 |  |  | 148 |  |  | (1) |  |  | 2,146 |
Municipal | 4,825 |  |  | (1) |  |  | 4,824 |  |  | 245 |  |  | — |  |  | 5,069 |
| $ | 11,697 |  |  | $ | (44) |  |  | $ | 11,653 |  |  | $ | 859 |  |  | $ | (2) |  |  | $ | 12,510 |
Schedule Of Amortized Cost and Fair Value of Available-for-sale Securities and Related OTTI Recognized in AOCI |
March 31, 2021 | Amortized Cost |  | Valuation Allowance |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |  |  |
(in millions of U.S. dollars) |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 2,413 |  |  | $ | — |  |  | $ | 121 |  |  | $ | (7) |  |  | $ | 2,527 |  |  |  |
Non-U.S. | 25,147 |  |  | (6) |  |  | 1,214 |  |  | (189) |  |  | 26,166 |  |  |  |
Corporate and asset-backed securities | 35,224 |  |  | (9) |  |  | 1,474 |  |  | (289) |  |  | 36,400 |  |  |  |
Mortgage-backed securities | 18,788 |  |  | — |  |  | 738 |  |  | (89) |  |  | 19,437 |  |  |  |
Municipal | 6,301 |  |  | — |  |  | 254 |  |  | (14) |  |  | 6,541 |  |  |  |
| $ | 87,873 |  |  | $ | (15) |  |  | $ | 3,801 |  |  | $ | (588) |  |  | $ | 91,071 |  |  |  |
| Amortized Cost |  | Valuation Allowance |  | Net Carrying Value |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |
Held to maturity |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 1,158 |  |  | $ | — |  |  | $ | 1,158 |  |  | $ | 39 |  |  | $ | — |  |  | $ | 1,197 |  |
Non-U.S. | 1,276 |  |  | (6) |  |  | 1,270 |  |  | 82 |  |  | (1) |  |  | 1,351 |  |
Corporate and asset-backed securities | 2,163 |  |  | (35) |  |  | 2,128 |  |  | 183 |  |  | — |  |  | 2,311 |  |
Mortgage-backed securities | 1,888 |  |  | (1) |  |  | 1,887 |  |  | 110 |  |  | — |  |  | 1,997 |  |
Municipal | 4,690 |  |  | (1) |  |  | 4,689 |  |  | 207 |  |  | — |  |  | 4,896 |  |
| $ | 11,175 |  |  | $ | (43) |  |  | $ | 11,132 |  |  | $ | 621 |  |  | $ | (1) |  |  | $ | 11,752 |  |
December 31, 2020 | Amortized Cost |  | Valuation Allowance |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |  |
(in millions of U.S. dollars) |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 2,471 |  |  | $ | — |  |  | $ | 199 |  |  | $ | — |  |  | $ | 2,670 |  |  |
Non-U.S. | 24,594 |  |  | (6) |  |  | 1,808 |  |  | (42) |  |  | 26,354 |  |  |
Corporate and asset-backed securities | 34,095 |  |  | (14) |  |  | 2,322 |  |  | (72) |  |  | 36,331 |  |  |
Mortgage-backed securities | 17,456 |  |  | — |  |  | 1,022 |  |  | (8) |  |  | 18,470 |  |  |
Municipal | 6,572 |  |  | — |  |  | 304 |  |  | (2) |  |  | 6,874 |  |  |
| $ | 85,188 |  |  | $ | (20) |  |  | $ | 5,655 |  |  | $ | (124) |  |  | $ | 90,699 |  |  |
| Amortized Cost |  | Valuation Allowance |  | Net Carrying Value |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value
Held to maturity |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 1,392 |  |  | $ | — |  |  | $ | 1,392 |  |  | $ | 60 |  |  | $ | — |  |  | $ | 1,452 |
Non-U.S. | 1,295 |  |  | (7) |  |  | 1,288 |  |  | 118 |  |  | (1) |  |  | 1,405 |
Corporate and asset-backed securities | 2,185 |  |  | (35) |  |  | 2,150 |  |  | 288 |  |  | — |  |  | 2,438 |
Mortgage-backed securities | 2,000 |  |  | (1) |  |  | 1,999 |  |  | 148 |  |  | (1) |  |  | 2,146 |
Municipal | 4,825 |  |  | (1) |  |  | 4,824 |  |  | 245 |  |  | — |  |  | 5,069 |
| $ | 11,697 |  |  | $ | (44) |  |  | $ | 11,653 |  |  | $ | 859 |  |  | $ | (2) |  |  | $ | 12,510 |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Table Text Block] | The following table presents the amortized cost of our HTM securities according to S&P rating:
| March 31, 2021 | December 31, 2020
(in millions of U.S. dollars, except for percentages) | Amortized cost |  | % of Total | Amortized cost |  | % of Total
AAA | $ | 2,404 |  |  | 22 | % | $ | 2,511 |  |  | 22 | %
AA | 5,815 |  |  | 52 | % | 6,193 |  |  | 53 | %
A | 2,109 |  |  | 19 | % | 2,138 |  |  | 18 | %
BBB | 818 |  |  | 7 | % | 826 |  |  | 7 | %
BB | 28 |  |  | — | % | 28 |  |  | — | %
Other | 1 |  |  | — | % | 1 |  |  | — | %
Total | $ | 11,175 |  |  | 100 | % | $ | 11,697 |  |  | 100 | %
Schedule Of Fixed Maturities By Contractual Maturity | The following table presents fixed maturities by contractual maturity:
|  |  | March 31 |  |  |  | December 31
|  |  | 2021 |  |  |  | 2020
(in millions of U.S. dollars) | Net Carrying Value |  | Fair Value |  | Net Carrying Value |  | Fair Value
Available for sale |  |  |  |  |  |  |
Due in 1 year or less | $ | 4,767 |  |  | $ | 4,767 |  |  | $ | 4,760 |  |  | $ | 4,760 |
Due after 1 year through 5 years | 26,100 |  |  | 26,100 |  |  | 26,227 |  |  | 26,227 |
Due after 5 years through 10 years | 27,394 |  |  | 27,394 |  |  | 27,232 |  |  | 27,232 |
Due after 10 years | 13,373 |  |  | 13,373 |  |  | 14,010 |  |  | 14,010 |
| 71,634 |  |  | 71,634 |  |  | 72,229 |  |  | 72,229 |
Mortgage-backed securities | 19,437 |  |  | 19,437 |  |  | 18,470 |  |  | 18,470 |
| $ | 91,071 |  |  | $ | 91,071 |  |  | $ | 90,699 |  |  | $ | 90,699 |
Held to maturity |  |  |  |  |  |  |
Due in 1 year or less | $ | 1,099 |  |  | $ | 1,109 |  |  | $ | 1,231 |  |  | $ | 1,240 |
Due after 1 year through 5 years | 3,471 |  |  | 3,613 |  |  | 3,592 |  |  | 3,760 |
Due after 5 years through 10 years | 2,918 |  |  | 3,072 |  |  | 3,029 |  |  | 3,228 |
Due after 10 years | 1,757 |  |  | 1,961 |  |  | 1,802 |  |  | 2,136 |
| 9,245 |  |  | 9,755 |  |  | 9,654 |  |  | 10,364 |
Mortgage-backed securities | 1,887 |  |  | 1,997 |  |  | 1,999 |  |  | 2,146 |
| $ | 11,132 |  |  | $ | 11,752 |  |  | $ | 11,653 |  |  | $ | 12,510 |
Schedule Of Aggregate Fair Value And Gross Unrealized Loss By Length Of Time The Security Has Continuously Been In An Unrealized Loss Position | The following tables present, for AFS fixed maturities in an unrealized loss position (including securities on loan) that are not deemed to have expected credit losses, the aggregate fair value and gross unrealized loss by length of time the security has continuously been in an unrealized loss position:
| 0 – 12 Months |  | Over 12 Months |  | Total
March 31, 2021 | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss
(in millions of U.S. dollars) |  |  |  |  |
U.S. Treasury / Agency | $ | 220 |  |  | $ | (7) |  |  | $ | — |  |  | $ | — |  |  | $ | 220 |  |  | $ | (7) |
Non-U.S. | 4,775 |  |  | (161) |  |  | 381 |  |  | (19) |  |  | 5,156 |  |  | (180) |
Corporate and asset-backed securities | 6,753 |  |  | (254) |  |  | 737 |  |  | (19) |  |  | 7,490 |  |  | (273) |
Mortgage-backed securities | 5,470 |  |  | (87) |  |  | 62 |  |  | (2) |  |  | 5,532 |  |  | (89) |
Municipal | 367 |  |  | (13) |  |  | 14 |  |  | (1) |  |  | 381 |  |  | (14) |
Total AFS fixed maturities | $ | 17,585 |  |  | $ | (522) |  |  | $ | 1,194 |  |  | $ | (41) |  |  | $ | 18,779 |  |  | $ | (563) |
| 0 – 12 Months |  | Over 12 Months |  | Total
December 31, 2020 | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss
(in millions of U.S. dollars) |  |  |  |  |
Non-U.S. | $ | 1,628 |  |  | $ | (35) |  |  | $ | 114 |  |  | $ | (5) |  |  | $ | 1,742 |  |  | $ | (40) |
Corporate and asset-backed securities | 2,212 |  |  | (33) |  |  | 593 |  |  | (14) |  |  | 2,805 |  |  | (47) |
Mortgage-backed securities | 875 |  |  | (6) |  |  | 35 |  |  | (2) |  |  | 910 |  |  | (8) |
Municipal | 40 |  |  | (1) |  |  | 16 |  |  | (1) |  |  | 56 |  |  | (2) |
Total AFS fixed maturities | $ | 4,755 |  |  | $ | (75) |  |  | $ | 758 |  |  | $ | (22) |  |  | $ | 5,513 |  |  | $ | (97) |
Schedule of Realized Gain (Loss) | The following table presents the components of Net realized gains (losses):
| Three Months Ended |  |
| March 31 |  |
(in millions of U.S. dollars) | 2021 |  | 2020 |  |  |  |
Fixed maturities: |  |  |  |  |  |  |
Gross realized gains | $ | 37 |  |  | $ | 77 |  |  |  |  |
Gross realized losses | (19) |  |  | (125) |  |  |  |  |
Net (provision for) recovery of expected credit losses | 6 |  |  | (150) |  |  |  |  |
Impairment (1) | — |  |  | (121) |  |  |  |  |
Total fixed maturities | $ | 24 |  |  | $ | (319) |  |  |  |  |
Equity securities | 367 |  |  | (29) |  |  |  |  |
Other investments | 38 |  |  | 5 |  |  |  |  |
Foreign exchange gains (losses) | 76 |  |  | (68) |  |  |  |  |
Investment and embedded derivative instruments | 109 |  |  | 15 |  |  |  |  |
Fair value adjustments on insurance derivative | 319 |  |  | (685) |  |  |  |  |
S&P futures | (44) |  |  | 125 |  |  |  |  |
Other derivative instruments | (1) |  |  | (2) |  |  |  |  |
Other | (1) |  |  | — |  |  |  |  |
Net realized gains (losses) (pre-tax) | $ | 887 |  |  | $ | (958) |  |  |  |  |
(1)Relates to certain securities we intended to sell and securities written to market entering default.
Gain (Loss) on Securities [Table Text Block] | Realized gains and losses from Equity securities and Other investments from the table above include sales of securities and unrealized gains and losses from fair value changes as follows:
|  |  | Three Months Ended
|  |  | March 31
| 2021 |  | 2020
(in millions of U.S. dollars) | Equity Securities |  | Other Investments |  | Total |  | Equity Securities |  | Other Investments |  | Total
Net gains (losses) recognized during the period | $ | 367 |  |  | $ | 38 |  |  | $ | 405 |  |  | $ | (29) |  |  | $ | 5 |  |  | $ | (24) |
Less: Net gains (losses) recognized from sales of securities | 45 |  |  | — |  |  | 45 |  |  | (24) |  |  | — |  |  | (24) |
Unrealized gains (losses) recognized for securities still held at reporting date | $ | 322 |  |  | $ | 38 |  |  | $ | 360 |  |  | $ | (5) |  |  | $ | 5 |  |  | $ | — |
Schedule Of Components Of Restricted Assets | The following table presents the components of restricted assets:
| March 31 |  | December 31
(in millions of U.S. dollars) | 2021 |  | 2020
Trust funds | $ | 13,553 |  |  | $ | 12,305 |
Deposits with U.S. regulatory authorities | 2,424 |  |  | 2,438 |
Deposits with non-U.S. regulatory authorities | 2,917 |  |  | 2,905 |
Assets pledged under repurchase agreements | 1,458 |  |  | 1,462 |
Other pledged assets | 638 |  |  | 584 |
Total | $ | 20,990 |  |  | $ | 19,694 |
Debt Securities, Available-for-sale, Allowance for Credit Loss [Table Text Block] | The following table presents a roll-forward of valuation allowance for expected credit losses on fixed maturities:
| Three Months Ended
|  |  | March 31
(in millions of U.S. dollars) | 2021 |  | 2020
Available for sale |  |  |
Valuation allowance for expected credit losses - beginning of period | $ | 20 |  |  | $ | — |
Impact of adoption of new accounting guidance | — |  |  | 25 |
Provision for expected credit loss | 4 |  |  | 149 |
Initial allowance for purchased securities with credit deterioration | — |  |  | 2 |
Recovery of expected credit loss | (9) |  |  | — |
Valuation allowance for expected credit losses - end of period | $ | 15 |  |  | $ | 176 |
Held to maturity |  |  |
Valuation allowance for expected credit losses - beginning of period | $ | 44 |  |  | $ | — |
Impact of adoption of new accounting guidance | — |  |  | 44 |
Provision for expected credit loss | — |  |  | 1 |
Recovery of expected credit loss | (1) |  |  | — |
Valuation allowance for expected credit losses - end of period | $ | 43 |  |  | $ | 45 |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Table Text Block] | The following table presents a roll-forward of valuation allowance for expected credit losses on fixed maturities:
| Three Months Ended
|  |  | March 31
(in millions of U.S. dollars) | 2021 |  | 2020
Available for sale |  |  |
Valuation allowance for expected credit losses - beginning of period | $ | 20 |  |  | $ | — |
Impact of adoption of new accounting guidance | — |  |  | 25 |
Provision for expected credit loss | 4 |  |  | 149 |
Initial allowance for purchased securities with credit deterioration | — |  |  | 2 |
Recovery of expected credit loss | (9) |  |  | — |
Valuation allowance for expected credit losses - end of period | $ | 15 |  |  | $ | 176 |
Held to maturity |  |  |
Valuation allowance for expected credit losses - beginning of period | $ | 44 |  |  | $ | — |
Impact of adoption of new accounting guidance | — |  |  | 44 |
Provision for expected credit loss | — |  |  | 1 |
Recovery of expected credit loss | (1) |  |  | — |
Valuation allowance for expected credit losses - end of period | $ | 43 |  |  | $ | 45 |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block] |
|  |  |  |  | March 31 |  |  |  | December 31
| Expected Liquidation Period of Underlying Assets |  |  |  | 2021 |  |  |  | 2020
(in millions of U.S. dollars) | Fair Value |  | Maximum Future Funding Commitments |  | Fair Value |  | Maximum Future Funding Commitments
Financial | 2 to 10 Years |  | $ | 710 |  |  | $ | 270 |  |  | $ | 673 |  |  | $ | 237 |
Real Assets | 2 to 11 Years |  | 942 |  |  | 621 |  |  | 805 |  |  | 598 |
Distressed | 2 to 8 Years |  | 481 |  |  | 864 |  |  | 358 |  |  | 970 |
Private Credit | 3 to 8 Years |  | 86 |  |  | 276 |  |  | 88 |  |  | 270 |
Traditional | 2 to 14 Years |  | 4,912 |  |  | 1,039 |  |  | 4,519 |  |  | 1,125 |
Vintage | 1 to 2 Years |  | 72 |  |  | — |  |  | 73 |  |  | — |
Investment funds | Not Applicable |  | 254 |  |  | — |  |  | 254 |  |  | — |
|  |  | $ | 7,457 |  |  | $ | 3,070 |  |  | $ | 6,770 |  |  | $ | 3,200 |

X
- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922900-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of credit quality indicator for investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 + Details
Name: | us-gaap_DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of investments in certain entities that calculate net asset value per share or equivalent measured at fair value on a recurring or nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258 + Details
Name: | us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of realized and unrealized gain (loss) on investment in security. + References No definition available. + Details
Name: | us-gaap_GainLossOnInvestmentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5B -URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269825-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financial instruments held by the entity for its own account for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. Description may include equity, fixed income, debt or other securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
Name: | us-gaap_ScheduleOfFinancialInstrumentsOwnedAndPledgedAsCollateralTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 + Details
Name: | us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 + Details
Name: | us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration