Entity information:
Income Taxes

Income tax expense from continuing operations was calculated based on the following components of income before income taxes:
(in millions)
 
2017
 
2016
 
2015
U.S. income
 
$
688

 
$
824

 
$
835

Non-U.S. income
 
243

 
111

 
127

Total
 
$
931

 
$
935

 
$
962



The components of income tax expense from continuing operations are as follows:
(in millions)
 
2017
 
2016
 
2015
Current:
 
 
 
 
 
 
U.S. federal
 
$
97

 
$
120

 
$
169

Non-U.S. 
 
68

 
29

 
38

U.S. state and local
 
18

 
11

 
11

Total current
 
183

 
160

 
218

Deferred:
 
 
 
 
 
 
U.S. federal
 
48

 
47

 
49

Non-U.S. 
 
(5
)
 

 
(4
)
U.S. state and local
 

 
1

 
5

Total deferred
 
43

 
48

 
50

Income tax expense
 
$
226

 
$
208

 
$
268



The effective income tax rate from continuing operations differed from the U.S. statutory tax rate as detailed below:
 
 
2017
 
2016
 
2015
Statutory tax rate
 
35.0
 %
 
35.0
 %
 
35.0
 %
Foreign rate differential
 
(5.5
)
 
(0.7
)
 
(1.0
)
State and local income taxes
 
1.6

 
1.1

 
1.2

Research and development credit
 
(5.0
)
 
(6.4
)
 
(3.2
)
Domestic manufacturing deduction
 
(2.1
)
 
(2.0
)
 
(2.0
)
Tax settlements
 
(0.1
)
 

 
(1.6
)
Change in valuation allowance
 
0.1

 
(4.5
)
 

Other
 
0.3

 
(0.3
)
 
(0.5
)
Effective income tax rate
 
24.3
 %
 
22.2
 %
 
27.9
 %


The Company's operations in the Philippines have been granted various tax incentives that will begin to expire in 2018, unless extended. The tax holiday allows for tax-free operations through various dates based on product lines, followed by a reduced income tax rate of 5 percent. Net income for 2017 increased $8 million ($0.05 per share) as a result of the tax holiday.

Net long-term deferred income tax benefits (liabilities) consist of the tax effects of temporary differences related to the following:
 
 
September 30
(in millions)
 
2017
 
2016
Inventory
 
$
(276
)
 
$
(282
)
Product warranty costs
 
45

 
29

Customer incentives
 
66

 
68

Contract reserves
 
49

 
6

Retirement benefits
 
400

 
549

Intangibles
 
(602
)
 
(171
)
Capital lease liability
 
19

 
20

Property
 
(196
)
 
(179
)
Stock-based compensation
 
37

 
33

Deferred compensation
 
27

 
16

Capital loss carryover
 

 
41

Compensation and benefits
 
38

 
28

Research and development credit carryforward
 
25

 

Valuation allowance
 
(23
)
 

Other
 
81

 
60

Deferred income taxes, net
 
$
(310
)
 
$
218



Management believes it is more likely than not that the deferred tax assets, except for certain net operating loss carryforwards and tax credit carryforwards, will be realized through the reduction of future taxable income. Significant factors considered by management in its determination of the probability of the realization of the deferred tax assets include: (a) the historical operating results of the Company ($2.007 billion of U.S. taxable income over the past three years), (b) expectations of future earnings, (c) the extended period of time over which the retirement benefit liabilities will be paid and (d) our ability to implement tax planning strategies.

As of September 30, 2017, the Company had state net operating loss carryforwards of $102 million which begin expiring in 2018, state tax credit carryforwards of $32 million which begin expiring in 2022, and a foreign tax credit carryforward of $68 million which will expire in 2027.

Changes in the valuation allowance for deferred tax assets are summarized as follows:
 
September 30
(in millions)
2017
 
2016
 
2015
Balance at beginning of year
$

 
$
42

 
$
43

Charged to costs and expenses
1

 

 

B/E Aerospace acquisition
22

 

 

Deductions(1)

 
(42
)
 
(1
)
Balance at September 30
$
23

 
$

 
$
42


(1) 2016 deduction of $42 million was primarily due to the creation of a tax planning strategy

The Company's U.S. Federal income tax returns for the tax year ended September 30, 2013 and prior years have been audited by the IRS and are closed to further adjustments by the IRS. The IRS is currently auditing the Company's tax returns for the years ended September 30, 2014 and 2015. The IRS is currently auditing the legacy tax filings of certain acquired subsidiaries for the 2014 calendar year. The Company is also currently under audit in various U.S. states and non-U.S. jurisdictions. The U.S. states and non-U.S. jurisdictions have statutes of limitations generally ranging from 3 to 5 years. The Company believes it has adequately provided for any tax adjustments that may result from the various audits.

No provision has been made as of September 30, 2017 for U.S. federal or state income taxes, or additional non-U.S. income taxes related to approximately $972 million of undistributed earnings of non-U.S. subsidiaries which have been or are intended to be permanently reinvested. Thus, it is not practicable to estimate the amount of tax that might be payable on the undistributed earnings.

The Company had net income tax payments of $230 million, $130 million and $182 million in 2017, 2016 and 2015, respectively.

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
 
 
September 30
(in millions)
 
2017
 
2016
 
2015
Beginning balance
 
$
45

 
$
39

 
$
48

Additions for tax positions related to the current year
 
73

 
11

 
8

Additions for tax positions of prior years
 
1

 
7

 
6

Additions for tax positions related to acquisitions
 
86

 

 

Reductions for tax positions of prior years
 
(1
)
 
(10
)
 
(17
)
Reductions for tax positions of prior years related to lapse of statute of limitations
 

 

 
(1
)
Reductions for tax positions related to settlements with taxing authorities
 
(3
)
 
(2
)
 
(5
)
Ending balance
 
$
201

 
$
45

 
$
39



The total amount of unrecognized tax benefits that, if recognized, would affect the effective income tax rate was $169 million, $20 million and $11 million as of September 30, 2017, 2016 and 2015, respectively. Although the timing and outcome of tax settlements are uncertain, it is reasonably possible that during the next 12 months a reduction in unrecognized tax benefits may occur in the range of $0 to $23 million based on the outcome of tax examinations or as a result of the expiration of various statutes of limitations.

The Company includes income tax-related interest and penalties in income tax expense. The total amount of interest and penalties recognized within Other Liabilities in the Consolidated Statement of Financial Position were $8 million and $2 million as of September 30, 2017 and 2016, respectively. The total amount of interest and penalties recorded as an expense or (income) within Income tax expense in the Consolidated Statement of Operations was not significant for the years ended September 30, 2017, 2016 and 2015.