XML 63 R43.htm IDEA: XBRL DOCUMENT
v3.10.0.1

FINANCIAL INSTRUMENTS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Derivative Instruments | The Company maintains various fixed-to-variable interest rate swaps to convert a portion of the Company's long-term debt into variable interest rate debt. A summary of the notional amounts of these interest rate swaps as of December 31, 2018 and 2017 was as follows:
|  | Notional Amount
Debt Instrument |  | 2018 |  | 2017
4.25% Senior Notes due April 2024 |  | 250 |  |  | 250 |
3.50% Senior Notes due March 2025 |  | 600 |  |  | 600 |
3.45% Senior Notes due June 2026 |  | 350 |  |  | 350 |
|  | $ | 1,200 |  |  | $ | 1,200 |
Schedule of Debt Instrument Fair Value Basis Adjustment Attributable to Hedged Debt | As of December 31, 2018 and 2017, the following amounts were recorded on the consolidated balance sheet related to cumulative basis adjustments for fair value hedges included in the carrying amount of long-term debt:
|  |  | Carrying Amount of Hedged Long-Term Debt |  | Hedge Accounting Basis Adjustment (a) |  | Carrying Amount of Hedged Long-Term Debt |  | Hedge Accounting Basis Adjustment (a)
Balance Sheet Classification |  | December 31, 2018 |  | December 31, 2018 |  | December 31, 2017 |  | December 31, 2017
Long-term debt |  | $ | 1,125 |  |  | $ | (53 | ) |  | $ | 1,132 |  |  | $ | (33 | )
(a) The balance includes $40 million and $56 million of remaining unamortized hedging adjustment on a discontinued relationship as of December 31, 2018 and 2017, respectively.
Schedule of Fair Value Hedging Instruments and Hedged Item, Statement of Financial Performance, Location | The following table presents the effect of fair value hedge accounting on the statement of operations for the years ended December 31, 2018 and 2017, respectively:
|  |  | Year Ended December 31,
|  |  | 2018 |  | 2017
|  | Other (expense) income, net |  | Other (expense) income, net
Total for line item in which the effects of fair value hedges are recorded |  | (8 | ) |  | 16 |
Gain (loss) on fair value hedging relationships: |  |  |  |
Hedged items (Long-term debt) |  | 4 |  |  | 1 |
Derivatives designated as hedging instruments |  | (4 | ) |  | (1 | )
Schedule of The Fair Values of Derivative Instruments | A summary of the fair values of derivative instruments in the consolidated balance sheets was as follows:
| December 31, 2018 |  | December 31, 2017
| Balance Sheet Classification |  | Fair Value |  | Balance Sheet Classification |  | Fair Value
Derivatives Designated as Hedging Instruments |  |  |  |  |  |  |  |  |
Interest rate swaps | Other liabilities |  | $ | 93 |  |  | Other liabilities |  | $ | 89 |

X
- Definition Schedule of Debt Instrument Fair Value Basis Adjustment Attributable to Hedged Debt [Table Text Block] + References No definition available. + Details
Name: | dgx_ScheduleofDebtInstrumentFairValueBasisAdjustmentAttributabletoHedgedDebtTableTextBlock
Namespace Prefix: | dgx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Fair Value Hedging Instruments and Hedged Item, Statement of Financial Performance, Location [Table Text Block] + References No definition available. + Details
Name: | dgx_ScheduleofFairValueHedgingInstrumentsandHedgedItemStatementofFinancialPerformanceLocationTableTextBlock
Namespace Prefix: | dgx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41641-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41678-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41638-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579240-113959 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41620-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration