Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

	Year Ended December 31,
(In millions)	2016			2015			2014
Net cash used in operating activities:
Interest paid (net of amounts capitalized)	$	(375	)	$	(325	)	$	(279	)
Income taxes paid to taxing authorities (a)	(84		)	(171		)	(1,679		)
Net cash provided by (used in) financing activities:
Commercial paper, net:
Issuances	$	—		$	—		$	2,345
Repayments	—			—			(2,480		)
Commercial paper, net	$	—		$	—		$	(135	)
Noncash investing activities, related to continuing operations:
Asset retirement cost increase (decrease)	$	111		$	(85	)	$	151
Asset retirement obligations assumed by buyer	40			251			359
Increase in capital expenditure accrual	—			—			335

^(a)  Income taxes paid to taxing authorities includes $1,312 million in 2014 related to discontinued operations.