Employee Benefit Plans - Defined Benefit Plans Measured Using Significant Unobservable Inputs Level 3 (Details) - Pension Plan [Member] - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	$ 9,532
Fair Value of Plan Assets - ending	8,087	$ 9,532
U.S.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	3,224	2,774
Fair Value of Plan Assets - ending	2,358	3,224
U.S. \| Real estate [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	35
Fair Value of Plan Assets - ending	28	35
U.S. \| Guaranteed insurance contracts [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	0
Fair Value of Plan Assets - ending	0	0
U.S. \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	0
Fair Value of Plan Assets - ending	0	0
U.S. \| Fair Value, Inputs, Level 3 [Member] \| Real estate [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	0	12
Purchases	0	0
Transfers out of Level 3		(7)
Sales	0	(5)
Realized losses	(4)	(9)
Unrealized gains (losses)	4	9
Currency translation	0	0
Fair Value of Plan Assets - ending	0	0
U.S. \| Fair Value, Inputs, Level 3 [Member] \| Guaranteed insurance contracts [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	0
Fair Value of Plan Assets - ending	0	0
Foreign Plan [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	6,308	5,384
Fair Value of Plan Assets - ending	5,729	6,308
Foreign Plan [Member] \| Real estate [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	313
Fair Value of Plan Assets - ending	367	313
Foreign Plan [Member] \| Guaranteed insurance contracts [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	100
Fair Value of Plan Assets - ending	92	100
Foreign Plan [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	244	231
Purchases	23	1
Transfers out of Level 3		0
Sales	(7)	(2)
Realized losses	0	(1)
Unrealized gains (losses)	58	(24)
Currency translation	(10)	39
Fair Value of Plan Assets - ending	308	244
Foreign Plan [Member] \| Fair Value, Inputs, Level 3 [Member] \| Real estate [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	137	121
Purchases	22	1
Transfers out of Level 3		0
Sales	(1)	0
Realized losses	0	(1)
Unrealized gains (losses)	62	7
Currency translation	(10)	9
Fair Value of Plan Assets - ending	210	137
Foreign Plan [Member] \| Fair Value, Inputs, Level 3 [Member] \| Private equity funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	7	6
Purchases	0	0
Transfers out of Level 3		0
Sales	0	0
Realized losses	0	0
Unrealized gains (losses)	(4)	(16)
Currency translation	3	17
Fair Value of Plan Assets - ending	6	7
Foreign Plan [Member] \| Fair Value, Inputs, Level 3 [Member] \| Guaranteed insurance contracts [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets -beginning	100	104
Purchases	1	0
Transfers out of Level 3		0
Sales	(6)	(2)
Realized losses	0	0
Unrealized gains (losses)	0	(15)
Currency translation	(3)	13
Fair Value of Plan Assets - ending	$ 92	$ 100

Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets sold.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held.

+ References

+ Details

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(01)
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(ii)
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Section 55
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-URI http://asc.fasb.org/extlink&oid=112275985&loc=d3e4179-114921

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Section 50
-Paragraph 1
-Subparagraph (d)(ii)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, measured using unobservable input, of decrease in plan asset of defined benefit plan from sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(02)(B)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, measured using unobservable input, of increase in plan asset of defined benefit plan from purchase.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan, for assets transferred into (out of) Level 3 of fair value hierarchy. Includes, but is not limited to, transfer due to change in observability of significant inputs.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration

- Definition

Benefit Plan Assets, Fair Value, Unobservable Inputs, Currency translation

+ References

No definition available.

+ Details

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Namespace Prefix:	xrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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