Stock-Based Compensation Award Details (Details) $ / shares in Units, $ in Millions		9 Months Ended	12 Months Ended
		Dec. 31, 2018 $ / shares shares	Dec. 31, 2018 USD ($) shares $ / shares		Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares
Stock-Based Compensation Details [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | shares		14,000,000	14,000,000		16,000,000
Stock-based compensation expense, pre-tax | $			$ 57		$ 52	$ 50
Income tax benefit recognized in earnings | $			$ 14		$ 20	$ 19
Restricted Stock Units (RSUs) [Member]
Stock-Based Compensation Details [Line Items]
Term			3 years
Fair Value			$ 27.82	[1]	$ 31.39	$ 38.28
Restricted Stock Units (RSUs) [Member] | Graded vesting after year one of service period [Member]
Stock-Based Compensation Details [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			25.00%
Restricted Stock Units (RSUs) [Member] | Graded vesting after year two of service period [Member]
Stock-Based Compensation Details [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			25.00%
Restricted Stock Units (RSUs) [Member] | Graded vesting after year three of service period [Member]
Stock-Based Compensation Details [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			50.00%
Performance Shares [Member]
Stock-Based Compensation Details [Line Items]
Term			3 years
Fair Value			$ 27.36		$ 32.80	$ 37.40
Performance Shares [Member] | Performance-Based [Member]
Stock-Based Compensation Details [Line Items]
Performance share grant basis - performance | shares			0.6666666667
Performance Shares Measurement Period			3 years
Performance share maximum overachievement			100.00%
Performance-Based Metric			1 year
Time-Based Metric			2 years
Performance Shares [Member] | TSR [Member]
Stock-Based Compensation Details [Line Items]
Term		3 years
Performance share grant basis - TSR | shares			0.3333333333
Performance-Based Metric			1 year
Time-Based Metric			2 years
Risk Free Interest Rate	[2]	2.39%
Dividend Yield	[3]	3.24%
Volatility rate	[4]	29.12%
Fair Value	[5]	$ 32.01
TSR historical volatility look back			3 years
Impact to Compensation Expense Resulting from Award Modification | $			$ 0
Performance Shares [Member] | TSR [Member] | 80th and above
Stock-Based Compensation Details [Line Items]
Payout as a percentage of target	[6]		200.00%
Performance Shares [Member] | TSR [Member] | 50th
Stock-Based Compensation Details [Line Items]
Payout as a percentage of target	[6]		100.00%
Performance Shares [Member] | TSR [Member] | 25th
Stock-Based Compensation Details [Line Items]
Payout as a percentage of target	[6]		35.00%
Performance Shares [Member] | TSR [Member] | Below 25th
Stock-Based Compensation Details [Line Items]
Payout as a percentage of target	[6]		0.00%
Performance Shares [Member] | Minimum [Member]
Stock-Based Compensation Details [Line Items]
Performance shares entitlement of original award grant			0.00%
Performance Shares [Member] | Maximum [Member]
Stock-Based Compensation Details [Line Items]
Performance shares entitlement of original award grant			200.00%
Equity Option [Member]
Stock-Based Compensation Details [Line Items]
Risk Free Interest Rate	[7]		2.63%
Dividend Yield	[8]		3.25%
Volatility rate	[9]		27.25%
Expected Term, Stock Options	[10]		6 years 1 month 17 days
Weighted Average Fair Value, Stock Options	[11]		$ 5.71
Equity Option [Member] | Graded vesting after year one of service period [Member]
Stock-Based Compensation Details [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			25.00%
Equity Option [Member] | Graded vesting after year two of service period [Member]
Stock-Based Compensation Details [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			25.00%
Equity Option [Member] | Graded vesting after year three of service period [Member]
Stock-Based Compensation Details [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			50.00%
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Contractual Term			10 years
Officers, Select Executives and Middle Management [Member] | Performance Shares [Member]
Stock-Based Compensation Details [Line Items]
Term			3 years

[1] Includes a Restricted Stock Award (RSA) of 351 shares with a corresponding grant date fair value of $28.51.

[2] The risk-free interest rate was based on the zero-coupon U.S. Treasury yield curve from the valuation date, with a maturity matched to the TSR performance period.

[3] The dividend yield was calculated as the expected quarterly dividend divided by Xerox’s three-month average stock price as of the valuation date.

[4] Xerox’s historical volatility is calculated from daily stock returns over a three-year look-back term from the valuation date.

[5] The weighted average of fair values used to record compensation expense as determined by the Monte Carlo simulation.

[6] For performance between the levels described above, the degree of vesting is interpolated on a linear basis.

[7] The risk-free interest rate was based on the zero-coupon U.S. Treasury yield curve with a maturity matched to the expected term of the SOs.

[8] The dividend yield was calculated as the expected quarterly dividend divided by Xerox’s three-month average stock price as of the grant date.

[9] The expected volatility was calculated based on a combination of Xerox's term-matched historical volatility and implied volatility from traded options.

[10] Since these SO grants are effectively part of a new program, the expected term was calculated using the "Simplified Method” under the SEC guidance based on the SOs vesting schedule and contractual term. We did not have sufficient historical exercise data to provide a reasonable basis to estimate an expected term.

[11] The weighted average of fair values used to record compensation expense as determined by the BS option-pricing model.