Supplemental Guarantor Information Supplemental Guarantor Information (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015
Cash and cash equivalents	$ 490.1	$ 652.7	$ 304.6	$ 313.6	$ 304.6
Short-term investments	77.7	64.1
Trade receivables, net	880.6	835.9
Intercompany receivables	0.0	0.0
Inventories	761.1	737.7
Prepaid expenses	63.6	60.7
Income taxes	122.5	85.2
Other current assets	205.9	183.3
Total current assets	2,601.5	2,619.6
Long-term Investments	94.5	94.7
Property, plant and equipment, net	382.2	387.0
Goodwill	1,011.7	998.3		161.5
Deferred income taxes	312.3	309.5
Finance lease receivables	22.9	25.2
Intangible assets, net	753.5	772.9
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0.0	0.0
Other assets	66.0	63.1
Assets	5,244.6	5,270.3
Liabilities, Current [Abstract]
Notes payable	77.7	106.9
Accounts payable	541.2	560.5
Intercompany payable	0.0	0.0
Deferred revenue	490.0	404.2
Payroll and other benefits liabilities	169.0	172.5
Other current liabilities	568.3	580.4
Total current liabilities	1,846.2	1,824.5
Long-term debt	1,689.7	1,691.4
Pensions, post-retirement and other benefits	292.6	297.2
Deferred income taxes	290.3	300.6
Other liabilities	108.0	87.7
Commitments and contingencies
Redeemable noncontrolling interests	449.9	44.1
Total Diebold Nixdorf, Incorporated shareholders' equity	533.1	591.4	595.6	412.4
Noncontrolling interests	34.8	433.4	23.5	23.1
Total liabilities, redeemable noncontrolling interests and equity	5,244.6	5,270.3
Parent Company [Member]
Cash and cash equivalents	19.0	138.4	10.2	20.3
Short-term investments	0.0	0.0
Trade receivables, net	143.2	119.0
Intercompany receivables	755.4	883.0
Inventories	150.3	110.5
Prepaid expenses	11.9	14.7
Income taxes	20.3	0.3
Other current assets	3.9	3.2
Total current assets	1,104.0	1,269.1
Long-term Investments	94.5	94.7
Property, plant and equipment, net	101.1	102.7
Goodwill	55.5	55.5
Deferred income taxes	167.4	173.1
Finance lease receivables	0.0	0.0
Intangible assets, net	1.0	1.8
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	2,645.4	2,619.6
Other assets	4.6	2.9
Assets	4,173.5	4,319.4
Liabilities, Current [Abstract]
Notes payable	52.4	30.9
Accounts payable	96.9	101.6
Intercompany payable	1,313.3	1,376.6
Deferred revenue	119.2	114.7
Payroll and other benefits liabilities	19.9	21.0
Other current liabilities	113.2	156.1
Total current liabilities	1,714.9	1,800.9
Long-term debt	1,689.0	1,690.5
Pensions, post-retirement and other benefits	211.8	212.6
Deferred income taxes	13.4	13.4
Other liabilities	11.3	10.6
Redeemable noncontrolling interests	0.0	0.0
Total Diebold Nixdorf, Incorporated shareholders' equity	533.1	591.4
Noncontrolling interests	0.0	0.0
Total liabilities, redeemable noncontrolling interests and equity	4,173.5	4,319.4
Guarantor Subsidiaries [Member]
Cash and cash equivalents	2.2	2.3	2.8	7.9
Short-term investments	0.0	0.0
Trade receivables, net	0.4	0.0
Intercompany receivables	925.1	783.7
Inventories	0.0	16.2
Prepaid expenses	1.1	0.8
Income taxes	4.1	25.4
Other current assets	1.4	1.6
Total current assets	934.3	830.0
Long-term Investments	0.0	0.0
Property, plant and equipment, net	3.7	9.0
Goodwill	0.0	0.0
Deferred income taxes	7.8	7.8
Finance lease receivables	4.1	4.8
Intangible assets, net	12.3	13.6
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0.0	0.0
Other assets	0.1	0.1
Assets	962.3	865.3
Liabilities, Current [Abstract]
Notes payable	1.0	1.3
Accounts payable	0.4	1.1
Intercompany payable	181.4	175.9
Deferred revenue	0.5	0.7
Payroll and other benefits liabilities	0.8	1.4
Other current liabilities	2.7	3.9
Total current liabilities	186.8	184.3
Long-term debt	0.3	0.4
Pensions, post-retirement and other benefits	0.0	0.0
Deferred income taxes	0.0	0.0
Other liabilities	0.0	0.0
Redeemable noncontrolling interests	0.0	0.0
Total Diebold Nixdorf, Incorporated shareholders' equity	775.2	680.6
Noncontrolling interests	0.0	0.0
Total liabilities, redeemable noncontrolling interests and equity	962.3	865.3
Non-Guarantor Subsidiaries [Member]
Cash and cash equivalents	468.9	512.0	291.6	285.4
Short-term investments	77.7	64.1
Trade receivables, net	737.0	717.5
Intercompany receivables	1,782.8	480.1
Inventories	610.8	611.0
Prepaid expenses	50.6	45.2
Income taxes	102.2	84.9
Other current assets	200.6	178.5
Total current assets	4,030.6	2,693.3
Long-term Investments	0.0	0.0
Property, plant and equipment, net	277.4	275.3
Goodwill	956.2	942.8
Deferred income taxes	137.1	128.6
Finance lease receivables	18.8	20.4
Intangible assets, net	740.2	757.5
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	16.3	9.3
Other assets	61.3	60.1
Assets	6,237.9	4,887.3
Liabilities, Current [Abstract]
Notes payable	24.3	74.7
Accounts payable	443.9	458.4
Intercompany payable	1,968.6	594.3
Deferred revenue	370.3	288.8
Payroll and other benefits liabilities	148.3	150.1
Other current liabilities	456.5	445.8
Total current liabilities	3,411.9	2,012.1
Long-term debt	0.4	0.5
Pensions, post-retirement and other benefits	80.8	84.6
Deferred income taxes	276.9	287.2
Other liabilities	96.7	77.1
Redeemable noncontrolling interests	449.9	44.1
Total Diebold Nixdorf, Incorporated shareholders' equity	1,886.5	1,948.3
Noncontrolling interests	34.8	433.4
Total liabilities, redeemable noncontrolling interests and equity	6,237.9	4,887.3
Reclassifications And Eliminations [Member]
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Short-term investments	0.0	0.0
Trade receivables, net	0.0	(0.6)
Intercompany receivables	(3,463.3)	(2,146.8)
Inventories	0.0	0.0
Prepaid expenses	0.0	0.0
Income taxes	(4.1)	(25.4)
Other current assets	0.0	0.0
Total current assets	(3,467.4)	(2,172.8)
Long-term Investments	0.0	0.0
Property, plant and equipment, net	0.0	0.0
Goodwill	0.0	0.0
Deferred income taxes	0.0	0.0
Finance lease receivables	0.0	0.0
Intangible assets, net		0.0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(2,661.7)	(2,628.9)
Other assets	0.0	0.0
Assets	(6,129.1)	(4,801.7)
Liabilities, Current [Abstract]
Notes payable	0.0	0.0
Accounts payable	0.0	(0.6)
Intercompany payable	(3,463.3)	(2,146.8)
Deferred revenue	0.0	0.0
Payroll and other benefits liabilities	0.0	0.0
Other current liabilities	(4.1)	(25.4)
Total current liabilities	(3,467.4)	(2,172.8)
Long-term debt	0.0	0.0
Pensions, post-retirement and other benefits	0.0	0.0
Deferred income taxes	0.0	0.0
Other liabilities	0.0	0.0
Redeemable noncontrolling interests	0.0	0.0
Total Diebold Nixdorf, Incorporated shareholders' equity	(2,661.7)	(2,628.9)
Noncontrolling interests	0.0	0.0
Total liabilities, redeemable noncontrolling interests and equity	$ (6,129.1)	$ (4,801.7)