XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.23.3

Settlement Assets and Obligations - Components of Investment Securities (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022
--- | --- | --- | ---
Cash and cash equivalents |  |  |  |
Amortized Cost |  | $ 1,138.2 | $ 1,285.9 | $ 1,176.1
Available-for-sale securities: |  |  |  |
Fair Value |  | 1,383.3 |  |
Settlement Assets |  |  |  |
Available-for-sale securities: |  |  |  |
Amortized Cost |  | 1,473.6 | 1,417.8 |
Fair Value |  | 1,383.3 | 1,333.7 |
Gross Unrealized Gains |  | 0.4 | 1.4 |
Gross Unrealized Losses |  | (90.7) | (85.5) |
Net Unrealized Gains/ (Losses) |  | (90.3) | (84.1) |
Amortized Cost |  | 1,480.0 | 1,429.5 |
Fair Value |  | 1,389.7 | 1,345.4 |
Gross Unrealized Gains |  | 0.4 | 1.4 |
Gross Unrealized Losses |  | (90.7) | (85.5) |
Net Unrealized Gains/ (Losses) |  | (90.3) | (84.1) |
Money market funds | Settlement Assets |  |  |  |
Cash and cash equivalents |  |  |  |
Amortized Cost |  | 6.4 | 11.7 |
Fair Value |  | 6.4 | 11.7 |
State and municipal debt securities | Settlement Assets |  |  |  |
Available-for-sale securities: |  |  |  |
Amortized Cost | [1] | 1,062.3 | 1,010.5 |
Fair Value | [1] | 981.0 | 933.3 |
Gross Unrealized Gains | [1] | 0.2 | 0.3 |
Gross Unrealized Losses | [1] | (81.5) | (77.5) |
Net Unrealized Gains/ (Losses) | [1] | (81.3) | (77.2) |
Asset-backed securities | Settlement Assets |  |  |  |
Available-for-sale securities: |  |  |  |
Amortized Cost |  | 188.5 | 183.4 |
Fair Value |  | 187.5 | 184.1 |
Gross Unrealized Gains |  | 0.1 | 0.8 |
Gross Unrealized Losses |  | (1.1) | (0.1) |
Net Unrealized Gains/ (Losses) |  | (1.0) | 0.7 |
Corporate debt securities | Settlement Assets |  |  |  |
Available-for-sale securities: |  |  |  |
Amortized Cost |  | 159.9 | 153.5 |
Fair Value |  | 152.9 | 146.9 |
Gross Unrealized Gains |  | 0.1 | 0.3 |
Gross Unrealized Losses |  | (7.1) | (6.9) |
Net Unrealized Gains/ (Losses) |  | (7.0) | (6.6) |
State and municipal variable-rate demand notes | Settlement Assets |  |  |  |
Available-for-sale securities: |  |  |  |
Amortized Cost |  | 48.3 | 48.9 |
Fair Value |  | 48.3 | 48.9 |
United States government agency mortgage-backed securities | Settlement Assets |  |  |  |
Available-for-sale securities: |  |  |  |
Amortized Cost |  | 14.6 | 21.5 |
Fair Value |  | 13.6 | 20.5 |
Gross Unrealized Losses |  | (1.0) | (1.0) |
Net Unrealized Gains/ (Losses) |  | $ (1.0) | $ (1.0) |
[1] | The majority of these securities are fixed-rate instruments.

X
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) 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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) 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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483467/210-10-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-4 + Details
Name: | us-gaap_CashAndCashEquivalentsAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before tax, of unrealized gain (loss) in accumulated other comprehensive income (AOCI) 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/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of 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 -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount excluding accrued interest, of 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/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition This item represents the cost of debt and equity securities, which are not categorized as trading. For available-for-sale securities this amount is 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. For held-to-maturity securities, this amount is before other than temporary impairment (OTTI) accretion. + References No definition available. + Details
Name: | wu_AvailableForSaleAndHeldToMaturitySecuritiesAmortizedCost
Namespace Prefix: | wu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of investments in debt and equity securities classified as available-for-sale and held-to-maturity. + References No definition available. + Details
Name: | wu_AvailableForSaleAndHeldToMaturitySecuritiesFairValue
Namespace Prefix: | wu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total accumulated gross unrealized gain for securities classified as either available-for-sale or held-to-maturity. For available-for-sale securities, it is the amount before tax of unrealized gain in accumulated other comprehensive income on investments in debt and equity securities. For held-to-maturity securities, is is the amount of accumulated unrealized gain on investments in debt securities. + References No definition available. + Details
Name: | wu_Availableforsaleandheldtomaturitysecuritiesaccumulatedgrossunrealizedgain
Namespace Prefix: | wu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total accumulated gross unrealized gain (loss) for securities classified as either available-for-sale or held-to-maturity. For available for sale securities, it is the amount before tax of unrealized gain (loss) in accumulated other comprehensive income on investments in debt and equity securities. For held-to-maturity, it is the amount of the accumulated net unrecognized gain (loss) on investments in debt securities. + References No definition available. + Details
Name: | wu_Availableforsaleandheldtomaturitysecuritiesaccumulatedgrossunrealizedgainloss
Namespace Prefix: | wu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total accumulated gross unrealized loss for securities classified as either available-for-sale or held-to-maturity. For available-for-sale securities, it is the amount before tax of unrealized loss in accumulated other comprehensive income on investments in debt and equity securities. For held-to-maturity securities, it is the amount of accumulated unrealized loss on investments in debt securities. + References No definition available. + Details
Name: | wu_Availableforsaleandheldtomaturitysecuritiesaccumulatedgrossunrealizedloss
Namespace Prefix: | wu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=wu_SettlementAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_VariableRateDemandObligationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |