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Restructuring Programs (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |
Strategic transformation costs | $ 0 | $ 1
Restructuring Reserve [Roll Forward] |  |
Balance at beginning of period | 49 | 44
Restructuring Charges | 17 | 24
Reversals of prior accruals | (1) | (5)
Restructuring, Net Current Period Charges | 16 | 19
Restructuring payments against reserve and currency | (11) | (13)
Adjustment for right-of-use assets | (22) |
Other Restructuring Costs | (3) | 1
Balance at end of period | 29 | 51
Net current period restructuring charges, continuing operations | 16 | 19
Commercial Industries |  |
Restructuring Reserve [Roll Forward] |  |
Net current period restructuring charges, continuing operations | 2 | 12
Corporate, Non-Segment [Member] |  |
Restructuring Reserve [Roll Forward] |  |
Net current period restructuring charges, continuing operations | 14 | 7
Severance and Related Costs [Member] |  |
Restructuring Reserve [Roll Forward] |  |
Balance at beginning of period | 13 | 14
Restructuring Charges | 3 | 17
Reversals of prior accruals | 0 | (3)
Restructuring, Net Current Period Charges | 3 | 14
Restructuring payments against reserve and currency | (5) | (5)
Adjustment for right-of-use assets | 0 |
Other Restructuring Costs | 0 | 0
Balance at end of period | 11 | 23
Lease Cancellation and Other Costs [Member] |  |
Restructuring Reserve [Roll Forward] |  |
Balance at beginning of period | 36 | 30
Restructuring Charges | 14 | 7
Reversals of prior accruals | (1) | (2)
Restructuring, Net Current Period Charges | 13 | 5
Restructuring payments against reserve and currency | (6) | (8)
Adjustment for right-of-use assets | (22) |
Other Restructuring Costs | (3) | 1
Balance at end of period | 18 | $ 28
Data Center Consolidation [Member] | Lease Cancellation and Other Costs [Member] |  |
Restructuring Reserve [Roll Forward] |  |
Restructuring Charges | $ 9 |

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