XML 95 R57.htm IDEA: XBRL DOCUMENT
v3.20.1

ALLOWANCE FOR CREDIT LOSSES, NONPERFORMING ASSETS, AND CONCENTRATIONS OF CREDIT RISK - Amortized Cost Basis by Credit Quality Indicator (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | $ 127,528 | $ 119,088
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2,518 |
2019 | 11,442 |
2018 | 10,148 |
2017 | 5,559 |
2016 | 3,614 |
Prior to 2016 | 5,901 |
Within the Revolving Period | 26,650 |
Converted to Term | 200 |
Total | 66,032 | 57,538
Commercial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2,468 |
2019 | 11,149 |
2018 | 9,485 |
2017 | 5,216 |
2016 | 3,349 |
Prior to 2016 | 5,399 |
Within the Revolving Period | 25,049 |
Converted to Term | 174 |
Total | 62,289 |
Commercial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 48 |
2019 | 200 |
2018 | 451 |
2017 | 171 |
2016 | 135 |
Prior to 2016 | 272 |
Within the Revolving Period | 963 |
Converted to Term | 4 |
Total | 2,244 |
Commercial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2 |
2019 | 66 |
2018 | 202 |
2017 | 144 |
2016 | 120 |
Prior to 2016 | 140 |
Within the Revolving Period | 493 |
Converted to Term | 18 |
Total | 1,185 |
Commercial | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 27 |
2018 | 10 |
2017 | 28 |
2016 | 10 |
Prior to 2016 | 90 |
Within the Revolving Period | 145 |
Converted to Term | 4 |
Total | 314 |
Commercial | Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,482 |
2019 | 7,670 |
2018 | 5,867 |
2017 | 3,326 |
2016 | 2,085 |
Prior to 2016 | 3,403 |
Within the Revolving Period | 25,059 |
Converted to Term | 200 |
Total | 49,092 | 41,479
Commercial | Commercial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,480 |
2019 | 7,457 |
2018 | 5,444 |
2017 | 3,079 |
2016 | 1,901 |
Prior to 2016 | 3,035 |
Within the Revolving Period | 23,655 |
Converted to Term | 174 |
Total | 46,225 |
Commercial | Commercial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 126 |
2018 | 264 |
2017 | 88 |
2016 | 75 |
Prior to 2016 | 177 |
Within the Revolving Period | 766 |
Converted to Term | 4 |
Total | 1,500 |
Commercial | Commercial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2 |
2019 | 60 |
2018 | 150 |
2017 | 136 |
2016 | 99 |
Prior to 2016 | 104 |
Within the Revolving Period | 493 |
Converted to Term | 18 |
Total | 1,062 |
Commercial | Commercial | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 27 |
2018 | 9 |
2017 | 23 |
2016 | 10 |
Prior to 2016 | 87 |
Within the Revolving Period | 145 |
Converted to Term | 4 |
Total | 305 |
Commercial | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 946 |
2019 | 3,394 |
2018 | 3,951 |
2017 | 2,022 |
2016 | 1,243 |
Prior to 2016 | 1,355 |
Within the Revolving Period | 1,591 |
Converted to Term | 0 |
Total | 14,502 | 13,522
Commercial | Commercial real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 898 |
2019 | 3,322 |
2018 | 3,750 |
2017 | 1,937 |
2016 | 1,187 |
Prior to 2016 | 1,257 |
Within the Revolving Period | 1,394 |
Converted to Term | 0 |
Total | 13,745 |
Commercial | Commercial real estate | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 48 |
2019 | 72 |
2018 | 181 |
2017 | 78 |
2016 | 56 |
Prior to 2016 | 93 |
Within the Revolving Period | 197 |
Converted to Term | 0 |
Total | 725 |
Commercial | Commercial real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 19 |
2017 | 2 |
2016 | 0 |
Prior to 2016 | 3 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 24 |
Commercial | Commercial real estate | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 1 |
2017 | 5 |
2016 | 0 |
Prior to 2016 | 2 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 8 |
Commercial | Leases |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 90 |
2019 | 378 |
2018 | 330 |
2017 | 211 |
2016 | 286 |
Prior to 2016 | 1,143 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 2,438 | 2,537
Commercial | Leases | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 90 |
2019 | 370 |
2018 | 291 |
2017 | 200 |
2016 | 261 |
Prior to 2016 | 1,107 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 2,319 |
Commercial | Leases | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 2 |
2018 | 6 |
2017 | 5 |
2016 | 4 |
Prior to 2016 | 2 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 19 |
Commercial | Leases | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 6 |
2018 | 33 |
2017 | 6 |
2016 | 21 |
Prior to 2016 | 33 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 99 |
Commercial | Leases | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior to 2016 | 1 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 1 |
Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 3,694 |
2019 | 14,652 |
2018 | 7,608 |
2017 | 6,794 |
2016 | 6,073 |
Prior to 2016 | 8,680 |
Within the Revolving Period | 12,701 |
Converted to Term | 1,294 |
Total | 61,496 | 61,550
Retail | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,172 |
2019 | 4,527 |
2018 | 1,956 |
2017 | 2,765 |
2016 | 3,508 |
Prior to 2016 | 4,793 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 18,721 | 19,083
Retail | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2 |
2019 | 24 |
2018 | 47 |
2017 | 73 |
2016 | 46 |
Prior to 2016 | 1,077 |
Within the Revolving Period | 10,429 |
Converted to Term | 1,294 |
Total | 12,992 | 13,154
Retail | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,269 |
2019 | 4,545 |
2018 | 2,623 |
2017 | 1,886 |
2016 | 1,149 |
Prior to 2016 | 685 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 12,157 | 12,120
Retail | Education |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 625 |
2019 | 3,174 |
2018 | 2,086 |
2017 | 1,722 |
2016 | 1,289 |
Prior to 2016 | 1,991 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 10,887 | 10,347
Retail | Other retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 626 |
2019 | 2,382 |
2018 | 896 |
2017 | 348 |
2016 | 81 |
Prior to 2016 | 134 |
Within the Revolving Period | 2,272 |
Converted to Term | 0 |
Total | 6,739 | $ 6,846
Greater than 800 | Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 990 |
2019 | 4,372 |
2018 | 2,620 |
2017 | 2,934 |
2016 | 2,986 |
Prior to 2016 | 3,828 |
Within the Revolving Period | 4,614 |
Converted to Term | 339 |
Total | 22,683 |
Greater than 800 | Retail | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 328 |
2019 | 1,694 |
2018 | 950 |
2017 | 1,541 |
2016 | 2,001 |
Prior to 2016 | 2,459 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 8,973 |
Greater than 800 | Retail | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1 |
2019 | 10 |
2018 | 15 |
2017 | 9 |
2016 | 6 |
Prior to 2016 | 288 |
Within the Revolving Period | 4,314 |
Converted to Term | 339 |
Total | 4,982 |
Greater than 800 | Retail | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 302 |
2019 | 935 |
2018 | 541 |
2017 | 441 |
2016 | 289 |
Prior to 2016 | 175 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 2,683 |
Greater than 800 | Retail | Education |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 221 |
2019 | 1,159 |
2018 | 880 |
2017 | 853 |
2016 | 669 |
Prior to 2016 | 848 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 4,630 |
Greater than 800 | Retail | Other retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 138 |
2019 | 574 |
2018 | 234 |
2017 | 90 |
2016 | 21 |
Prior to 2016 | 58 |
Within the Revolving Period | 300 |
Converted to Term | 0 |
Total | 1,415 |
740-799 | Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,545 |
2019 | 5,550 |
2018 | 2,504 |
2017 | 2,061 |
2016 | 1,762 |
Prior to 2016 | 2,235 |
Within the Revolving Period | 4,087 |
Converted to Term | 302 |
Total | 20,046 |
740-799 | Retail | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 634 |
2019 | 2,026 |
2018 | 647 |
2017 | 828 |
2016 | 1,017 |
Prior to 2016 | 1,220 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 6,372 |
740-799 | Retail | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1 |
2019 | 7 |
2018 | 8 |
2017 | 7 |
2016 | 4 |
Prior to 2016 | 238 |
Within the Revolving Period | 3,423 |
Converted to Term | 302 |
Total | 3,990 |
740-799 | Retail | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 393 |
2019 | 1,304 |
2018 | 738 |
2017 | 529 |
2016 | 312 |
Prior to 2016 | 174 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 3,450 |
740-799 | Retail | Education |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 294 |
2019 | 1,364 |
2018 | 793 |
2017 | 567 |
2016 | 397 |
Prior to 2016 | 562 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 3,977 |
740-799 | Retail | Other retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 223 |
2019 | 849 |
2018 | 318 |
2017 | 130 |
2016 | 32 |
Prior to 2016 | 41 |
Within the Revolving Period | 664 |
Converted to Term | 0 |
Total | 2,257 |
680-739 | Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 814 |
2019 | 3,085 |
2018 | 1,501 |
2017 | 1,050 |
2016 | 800 |
Prior to 2016 | 1,293 |
Within the Revolving Period | 2,563 |
Converted to Term | 272 |
Total | 11,378 |
680-739 | Retail | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 192 |
2019 | 687 |
2018 | 280 |
2017 | 294 |
2016 | 367 |
Prior to 2016 | 614 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 2,434 |
680-739 | Retail | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 3 |
2018 | 8 |
2017 | 9 |
2016 | 6 |
Prior to 2016 | 224 |
Within the Revolving Period | 1,915 |
Converted to Term | 272 |
Total | 2,437 |
680-739 | Retail | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 355 |
2019 | 1,233 |
2018 | 676 |
2017 | 441 |
2016 | 252 |
Prior to 2016 | 135 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 3,092 |
680-739 | Retail | Education |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 105 |
2019 | 553 |
2018 | 321 |
2017 | 222 |
2016 | 156 |
Prior to 2016 | 298 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 1,655 |
680-739 | Retail | Other retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 162 |
2019 | 609 |
2018 | 216 |
2017 | 84 |
2016 | 19 |
Prior to 2016 | 22 |
Within the Revolving Period | 648 |
Converted to Term | 0 |
Total | 1,760 |
620-679 | Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 286 |
2019 | 1,219 |
2018 | 594 |
2017 | 402 |
2016 | 284 |
Prior to 2016 | 619 |
Within the Revolving Period | 799 |
Converted to Term | 174 |
Total | 4,377 |
620-679 | Retail | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 12 |
2019 | 102 |
2018 | 44 |
2017 | 56 |
2016 | 79 |
Prior to 2016 | 237 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 530 |
620-679 | Retail | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 1 |
2018 | 6 |
2017 | 15 |
2016 | 9 |
Prior to 2016 | 160 |
Within the Revolving Period | 570 |
Converted to Term | 174 |
Total | 935 |
620-679 | Retail | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 191 |
2019 | 758 |
2018 | 391 |
2017 | 248 |
2016 | 145 |
Prior to 2016 | 84 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 1,817 |
620-679 | Retail | Education |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 5 |
2019 | 86 |
2018 | 69 |
2017 | 55 |
2016 | 45 |
Prior to 2016 | 130 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 390 |
620-679 | Retail | Other retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 78 |
2019 | 272 |
2018 | 84 |
2017 | 28 |
2016 | 6 |
Prior to 2016 | 8 |
Within the Revolving Period | 229 |
Converted to Term | 0 |
Total | 705 |
Less than 620 | Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 36 |
2019 | 420 |
2018 | 389 |
2017 | 347 |
2016 | 241 |
Prior to 2016 | 607 |
Within the Revolving Period | 324 |
Converted to Term | 207 |
Total | 2,571 |
Less than 620 | Retail | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 4 |
2019 | 16 |
2018 | 35 |
2017 | 46 |
2016 | 44 |
Prior to 2016 | 251 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 396 |
Less than 620 | Retail | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 3 |
2018 | 10 |
2017 | 33 |
2016 | 21 |
Prior to 2016 | 166 |
Within the Revolving Period | 207 |
Converted to Term | 207 |
Total | 647 |
Less than 620 | Retail | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 26 |
2019 | 314 |
2018 | 277 |
2017 | 227 |
2016 | 151 |
Prior to 2016 | 99 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 1,094 |
Less than 620 | Retail | Education |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 12 |
2018 | 23 |
2017 | 25 |
2016 | 22 |
Prior to 2016 | 86 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 168 |
Less than 620 | Retail | Other retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 6 |
2019 | 75 |
2018 | 44 |
2017 | 16 |
2016 | 3 |
Prior to 2016 | 5 |
Within the Revolving Period | 117 |
Converted to Term | 0 |
Total | 266 |
No FICO available | Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 23 |
2019 | 6 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior to 2016 | 98 |
Within the Revolving Period | 314 |
Converted to Term | 0 |
Total | 441 |
No FICO available | Retail | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2 |
2019 | 2 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior to 2016 | 12 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 16 |
No FICO available | Retail | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior to 2016 | 1 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 1 |
No FICO available | Retail | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2 |
2019 | 1 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior to 2016 | 18 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 21 |
No FICO available | Retail | Education |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior to 2016 | 67 |
Within the Revolving Period | 0 |
Converted to Term | 0 |
Total | 67 |
No FICO available | Retail | Other retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 19 |
2019 | 3 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior to 2016 | 0 |
Within the Revolving Period | 314 |
Converted to Term | 0 |
Total | $ 336 |

X
- Definition Amount of revolving financing receivable converted to term loan. + References No definition available. + Details
Name: | cfg_FinancingReceivableRevolvingConvertedToTermLoan
Namespace Prefix: | cfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated five or more years prior to latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated four years prior to latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated in current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated in fiscal year prior to latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated three years prior to latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated two years prior to latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable that can be withdrawn, repaid and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfg_FinanceLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfg_HomeEquityLoanAndLineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_AutomobileLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_StudentLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfg_ConsumerOtherRetailMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditScoreFicoAxis=cfg_FICOScoreGreaterThan800Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditScoreFicoAxis=cfg_FICOScore740To799Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditScoreFicoAxis=cfg_FICOScore680To739Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditScoreFicoAxis=cfg_FICOScore620To679Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditScoreFicoAxis=cfg_FICOScoreLessThan620Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditScoreFicoAxis=cfg_FICOScoreNoFICOAvailableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |