Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
		Nov. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate adjustment in period, pre-tax			$ 238	$ 53	$ (251)
Aggregate adjustment in period, net of tax			241	45	(242)
Divestiture - reclassification, pre-tax			0	17	0
Divestiture - reclassification, net of tax			0	17	0
Translation Adjustment Gains (Losses), Pre-tax			238	70	(251)
Translation Adjustment Gains (Losses), Net of Tax	[1]		241	62	(242)
Changes in fair value of cash flow hedges gains, pre-tax			4	2	9
Changes in fair value of cash flow hedges gains, net of tax			3	1	8
Changes in cash flow hedges reclassed to earnings, pre-tax			1	(9)	14
Changes in cash flow hedges reclassed to earnings, net of tax			1	(7)	10
Other losses, pre-tax			0	0	(2)
Other losses, net of tax			0	0	(2)
Net Unrealized Gains (Losses), Pre-tax			5	(7)	21
Net Unrealized Gains (Losses), Net of Tax			4	(6)	16
Net actuarial/prior service gains (losses), pre-tax			117	(275)	273
Net actuarial/prior service gains (losses), net of tax			86	(202)	198
Prior service amortization/curtailment, pre-tax			(80)	(81)	(26)
Prior service amortization/curtailment, net of tax			(60)	(61)	(20)
Actuarial loss amortization/settlement, pre-tax			138	156	252
Actuarial loss amortization/settlement, net of tax			104	118	190
Fuji Xerox changes in defined benefit plans, net, pre-tax			0	8	(25)
Fuji Xerox changes in defined benefit plans, net, net of tax			0	8	(25)
Other (losses) gains, pre-tax			(63)	(21)	66
Other (losses) gains, net of tax			(61)	(21)	66
Divestiture - reclassification, pre-tax			0	148	0
Divestiture - reclassification, net of tax			0	148	0
Changes in Defined Benefit Plans Gains (Losses), Pre-tax			112	(65)	540
Changes in Defined Benefit Plans Gains (Losses), Net of Tax	[1]		69	(10)	409
Other Comprehensive Income (Loss) Attributable to Xerox Holdings/Xerox			355	(2)	310
Other Comprehensive Income (Loss), Net Attributable to Xerox Holdings/Xerox	[1]		$ 314	46	$ 183
Fuji Xerox Co., Ltd. and Xerox International Partners, The Sales | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Divestiture - reclassification, pre-tax		$ 165		$ 165

[1] Refer to Note 25 - Other Comprehensive Income (Loss) for gross components of Other Comprehensive Income, reclassification adjustments out of Accumulated Other Comprehensive Loss and related tax effects.