Selected Financial Data

(In millions, except per share information) As of and for the years ended December 31,

SUMMARY BALANCE SHEET 2017 2016
Total current assets
$ 2,870 $ 2,289
Property and equipment, net
1,288 1,174
Other assets, net
190 101
Other intangible assets, net
263 187
Goodwill
1,869 1,603
Total assets
$ 6,480 $ 5,354
     
Total current liabilities
$ 1,492 $ 1,205
Long-term debt and notes payable, net
$ 671 $ 353
Deferred income taxes
179 193
Insurance and other non-current liabilities
342 260
Total equity
3,796 3,343
Total liabilities and stockholders' equity
$ 6,480 $ 5,354
SUMMARY INCOME STATEMENT    
Revenues
$ 9,466 $ 7,651
Operating income
$ 379 $ 321
Net income from continuing operations
attributable to common stock
$ 315 $ 198
Diluted earnings per share from continuing
operations attributable to common stock
$ 2.00 $ 1.26
SUMMARY CASH FLOW DATA    
Net cash provided by operating activities
of continuing operations
$ 372 $ 390
Capital expenditures, net of proceeds
from sales
221 190
Free cash flow (1)
$ 151 $ 200

(1)This is a non-GAAP measure provided to enable investors to evaluate performance excluding the effects of certain items management believes impact the comparability of operating results between reporting periods.

Reconciliation of Non-GAAP Financial Measures

Adjusted Diluted Earning Per Share from Continuing Operations: (In millions, except per share information) For the Years Ended December 31,

  2017 2016 2015 2014
Net income from continuing operations attributable to common stock (GAAP as reported) $ 315 $ 199 $ 120 $ 269
Adjustments:        
Impact of Tax Cut and Jobs Act (70)
Tax benefits primarily related to entity restructuring and recapitalization efforts (18)
Change in fair value of contingent consideration liabilities (5)
Impact of income tax contingency releases (7) (20) (8)
Severance and restructuring charges 6
Asset impairment charges 58 8 58
Impact of Alberta tax law change 5
Impact of tax benefit from realization of previously
unrecognized deferred tax asset
(4)
Provision for long-term contract receivable 102
Arbitration expense 39
Acquisition and integration costs 10 3 8 15
Income tax impact of adjustments (24) (4) (16) (56)
Adjusted net income from continuing operations attributable to common
stock before certain non-cash adjustments
259 192 171 361
Non-cash stock-based compensation 47 40 37 38
Amortization of intangibles 32 32 35 34
Income tax impact of non-tax adjustments (29) (26) (26) (26)
Adjusted net income from continuing operations attributable to common
stock for adjusted diluted earnings per share from continuing operations
309 238 217 407
Calculation of weighted average shares for adjusted diluted earnings
per share from continuing operations attributable to common stock:
Weighted average shares outstanding for basic earnings per share 156 157 195 220
Effect of dilutive stock options 1 0 0 0
Weighted average shares outstanding for adjusted diluted earnings per share 157 157 185 220
Adjusted diluted earnings per share from continuing operations
attributable to common stock
$ 1.97 $ 1.51 $ 1.11 $ 1.85

The non-GAAP measure of adjusted diluted earnings per share from continuing operations is provided to enable investors evaluate performance excluding the effects of items that management believes impact the comparability of operating results between periods.