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Debt - (Narrative) (Details) |  |  | 1 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 29, 2019 USD ($) | Sep. 21, 2018 USD ($) | Jul. 31, 2019 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 EUR (€) | May 21, 2019 USD ($) | May 21, 2019 EUR (€) | May 21, 2019 GBP (£) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Sep. 30, 2017 EUR (€) | Sep. 30, 2017 GBP (£)
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  |  | $ 19,201,000,000 | $ 5,703,000,000 |  |  |  |  |  |  |  |
Debt issuance cost |  |  |  | 114,000,000 |  |  |  |  |  |  |  |  |
Fair value aggregate difference |  |  |  | 759,000,000 |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility outstanding amount |  |  |  | $ 0 |  |  |  |  |  |  | $ 208,000,000 |  |
Euro Commercial Paper Program | FIS Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper | € |  |  |  |  |  | € 1,500,000,000 |  |  |  |  |  |  |
Senior Euro Notes due July 2024, interest payable annually at 1.100% (2024 Euro Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 3 months |  |  |  |  |  |  |  |  |
FIS Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized discount (premium), net |  |  |  | $ 33,000,000 |  |  |  |  |  |  |  |  |
Debt issuance cost |  |  |  | 114,000,000 |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility outstanding amount |  |  |  | 0 |  |  |  |  |  |  |  |  |
Borrowing capacity remaining |  |  |  | $ 5,497,000,000 |  |  |  |  |  |  |  |  |
Revolving Credit Facility | FIS Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility maximum borrowing amount | $ 5,500,000,000 | $ 4,000,000,000.0 |  |  | $ 3,000,000,000.0 |  |  |  |  |  |  |  |
Senior Notes due October 2020, interest payable semi-annually at 3.625% (2020 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 1 month |  |  |  |  |  |  |  |  |
Senior Notes due October 2022, interest payable semi-annually at 4.500% (2022 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 2 months |  |  |  |  |  |  |  |  |
Senior GBP Notes due June 2022, interest payable annually at 1.700% (2022 GBP Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 1 month |  |  |  |  |  |  |  |  |
Senior Notes due June 2024, interest payable semi-annually at 3.875% (2024 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 3 months |  |  |  |  |  |  |  |  |
Senior Notes due April 2023, interest payable semi-annually at 3.500% (2023 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 3 months |  |  |  |  |  |  |  |  |
Senior Notes due May 2028, interest payable semi-annually at 4.250% (2028 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 3 months |  |  |  |  |  |  |  |  |
Senior Notes due August 2046, interest payable semi-annually at 4.500% (2046 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 6 months |  |  |  |  |  |  |  |  |
Senior Notes due May 2048, interest payable semi-annually at 4.750% (2048 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 6 months |  |  |  |  |  |  |  |  |
Senior Notes due August 2021, interest payable semi-annually at 2.250% (2021 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 1 month |  |  |  |  |  |  |  |  |
Senior Euro Notes due January 2021, interest payable annually at 0.400% (2021 Euro Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 1 month |  |  |  |  |  |  |  |  |
Senior Notes due October 2025, interest payable semi-annually at 5.000% (2025 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 3 months |  |  |  |  |  |  |  |  |
Senior Notes due August 2026, interest payable semi-annually at 3.000% (2026 Notes) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of redemption price |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Trigger price, period prior to maturity |  |  |  | 3 months |  |  |  |  |  |  |  |  |
Commercial paper | Euro Commercial Paper Program | FIS Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility maximum borrowing amount | $ 4,700,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term | 183 days |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  |  |
Weighted average interest rate |  |  |  | (0.19%) |  | (0.19%) |  |  |  |  |  |  |
Commercial paper | Euro Commercial Paper Program | FIS Credit Agreements | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  |  | $ 2,900,000,000 |  |  |  |  |  |  |  |  |  |
Weighted average interest rate |  |  | (0.15%) |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  | $ 1,400,000,000 |  |  |  |  |  |  |  |  |  |
Commercial paper | Commercial Paper Program | FIS Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt |  |  |  | $ 0 |  |  |  |  |  |  | $ 250,000,000 |  |
Credit facility maximum borrowing amount |  | $ 4,000,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  | 397 days |  |  |  |  |  |  |  |  |  |  |
Bridge loan | Letter of credit |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility maximum borrowing amount |  |  |  |  |  |  |  |  |  | $ 9,500,000,000 |  |  |
Letter of credit |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility outstanding amount |  |  |  | $ 3,000,000 |  |  |  |  |  |  |  |  |
Senior notes | Senior Euro Floating Rate Notes due May 2021, interest payable quarterly (Floating Rate Notes) (1) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  | € 500,000,000 |  |  |  |  |
Weighted average interest rate |  |  |  | 0.09% |  | 0.09% |  |  |  |  |  |  |
Senior notes | Senior Euro Notes due May 2021, interest payable annually at 0.125% (May 2021 Euro Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  | € 500,000,000 |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 0.125% |  | 0.125% | 0.125% | 0.125% | 0.125% |  |  |  |
Senior notes | Senior Euro Notes due May 2023, interest payable annually at 0.750% (2023 Euro Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  | € 1,250,000,000 |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 0.75% |  | 0.75% |  |  |  |  |  |  |
Senior notes | Senior Euro Notes due May 2027, interest payable annually at 1.500% (2027 Euro Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  | € 1,250,000,000 |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 1.50% |  | 1.50% | 1.50% | 1.50% | 1.50% |  |  |  |
Senior notes | Senior Euro Notes due May 2030, interest payable annually at 2.000% (2030 Euro Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  | € 1,000,000,000 |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 2.00% |  | 2.00% |  |  |  |  |  |  |
Senior notes | Senior Euro Notes due May 2039, interest payable annually at 2.950% (2039 Euro Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  | € 500,000,000 |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 2.95% |  | 2.95% | 2.95% | 2.95% | 2.95% |  |  |  |
Senior notes | Senior GBP Notes due May 2025, interest payable annually at 2.602% (2025 GBP Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | £ |  |  |  |  |  |  |  |  | £ 625,000,000 |  |  |  |
Debt instrument, stated percentage |  |  |  | 2.602% |  | 2.602% | 2.602% | 2.602% | 2.602% |  |  |  |
Senior notes | Senior GBP Notes due May 2031, interest payable annually at 3.360% (2031 GBP Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | £ |  |  |  |  |  |  |  |  | £ 625,000,000 |  |  |  |
Debt instrument, stated percentage |  |  |  | 3.36% |  | 3.36% | 3.36% | 3.36% | 3.36% |  |  |  |
Senior notes | Senior Notes due May 2029, interest payable semi-annually at 3.750% (2029 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt |  |  |  |  |  |  | $ 1,000,000,000.0 |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 3.75% |  | 3.75% | 3.75% | 3.75% | 3.75% |  |  |  |
Senior notes | Senior Euro Notes due July 2024, interest payable annually at 1.100% (2024 Euro Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  |  |  |  |  | € 500,000,000 |
Debt instrument, stated percentage |  |  |  | 1.10% |  | 1.10% |  |  |  |  |  |  |
Senior notes | Senior Euro Notes due July 2024, interest payable annually at 1.100% (2024 Euro Notes) | Fair Value Hedging | Interest rate swap |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative asset fair value |  |  |  | $ 14,000,000 |  |  |  |  |  |  |  |  |
Senior notes | Senior Notes due October 2020, interest payable semi-annually at 3.625% (2020 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 3.625% |  | 3.625% |  |  |  |  |  |  |
Senior notes | Senior Notes due October 2022, interest payable semi-annually at 4.500% (2022 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 4.50% |  | 4.50% |  |  |  |  |  |  |
Senior notes | Senior GBP Notes due June 2022, interest payable annually at 1.700% (2022 GBP Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | £ |  |  |  |  |  |  |  |  |  |  |  |  | £ 300,000,000
Debt instrument, stated percentage |  |  |  | 1.70% |  | 1.70% |  |  |  |  |  |  |
Senior notes | Senior Notes due June 2024, interest payable semi-annually at 3.875% (2024 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 3.875% |  | 3.875% |  |  |  |  |  |  |
Senior notes | Senior Notes due April 2023, interest payable semi-annually at 3.500% (2023 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 3.50% |  | 3.50% |  |  |  |  |  |  |
Senior notes | Senior Notes due May 2028, interest payable semi-annually at 4.250% (2028 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 4.25% |  | 4.25% |  |  |  |  |  |  |
Senior notes | Senior Notes due August 2046, interest payable semi-annually at 4.500% (2046 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 4.50% |  | 4.50% |  |  |  |  |  |  |
Senior notes | Senior Notes due May 2048, interest payable semi-annually at 4.750% (2048 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 4.75% |  | 4.75% |  |  |  |  |  |  |
Senior notes | Senior Notes due August 2021, interest payable semi-annually at 2.250% (2021 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 2.25% |  | 2.25% |  |  |  |  |  |  |
Senior notes | Senior Euro Notes due January 2021, interest payable annually at 0.400% (2021 Euro Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt | € |  |  |  |  |  |  |  |  |  |  |  | € 500,000,000 |
Debt instrument, stated percentage |  |  |  | 0.40% |  | 0.40% |  |  |  |  |  |  |
Senior notes | Senior Notes due October 2025, interest payable semi-annually at 5.000% (2025 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 5.00% |  | 5.00% |  |  |  |  |  |  |
Senior notes | Senior Notes due August 2026, interest payable semi-annually at 3.000% (2026 Notes) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage |  |  |  | 3.00% |  | 3.00% |  |  |  |  |  |  |

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- Definition Debt Instrument, Make Whole Amount, Trigger, Period Prior to Maturity + References No definition available. + Details
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- Definition Fair Value, Aggregate Differences, Long-term Debt Instruments + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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