Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operations
Net income	$ 1,011	$ 1,546	$ 602
Adjustments to reconcile income from continuing operations to net cash from operating activities:
Loss from discontinued operations, net of tax	0	6	7
Depreciation and amortization	789	771	750
Pension settlement charges	755	1	2
Deferred income taxes	(310)	(263)	211
Stock compensation	122	115	107
Net periodic pension benefit and other postretirement costs	22	39	123
Impairment of intangible assets	31	0	0
Other	115	50	38
Changes in balance sheet items:
Accounts receivable, net	(65)	(12)	30
Inventories	4	(197)	76
Accounts payable and accrued liabilities	(212)	60	11
Other	(152)	(99)	(227)
Cash flows from operations – continuing operations	2,110	2,017	1,730
Cash flows from operations - discontinued operations	(6)	0	(16)
Cash flows from operations	2,104	2,017	1,714
Cash flows from investing activities
Capital expenditures	(696)	(659)	(616)
Acquisitions and investments, net of cash acquired	(418)	(268)	(686)
Other investing activities, net	14	11	10
Cash flows from investing activities	(1,100)	(916)	(1,292)
Cash flows from financing activities
Issuances of debt	1,661	0	665
Borrowings under revolving credit facility	222	0	0
Cash dividends on common stock	(423)	(376)	(315)
Proceeds from stock issued under employee benefit plans	356	258	347
Purchases of treasury stock	(1,270)	(2,452)	(564)
Other financing activities, net	(48)	(33)	(40)
Cash flows from financing activities	498	(2,603)	93
Effect of foreign exchange rate changes on cash and cash equivalents	(5)	(63)	102
Increase (decrease) in cash and cash equivalents	1,497	(1,565)	617
Cash and cash equivalents at beginning of year	1,838	3,403	2,786
Cash and cash equivalents at end of year	3,335	1,838	3,403
Other supplemental information
Interest paid, net of portion capitalized	103	94	80
Income taxes paid	$ 294	$ 301	$ 253