Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Revenue by Distribution Method

The following tables show sales by distribution method at the consolidated level and for each reportable segment and Other for the quarters ended March 31, 2020 and March 31, 2019.

(Millions of dollars)	Quarter Ended March 31, 2020
Sales	Americas		EMEA		APAC		Engineering		Other		Total		%
Merchant	$	726	$	470	$	459	$	—	$	47	$	1,702	25	%
On-Site	650		343		492		—		—		1,485		22	%
Packaged Gas	1,275		811		360		—		5		2,451		36	%
Other	26		9		25		608		433		1,101		17	%
	$	2,677	$	1,633	$	1,336	$	608	$	485	$	6,739	100	%

(Millions of dollars)	Quarter Ended March 31, 2019
Sales	Americas		EMEA		APAC		Engineering		Other (a)		Total		%
Merchant	$	703	$	427	$	497	$	—	$	31	$	1,658	24	%
On-Site	702		377		511		—		—		1,590		23	%
Packaged Gas	1,285		874		387		—		—		2,546		37	%
Other	12		4		32		636		466		1,150		16	%
Total	$	2,702	$	1,682	$	1,427	$	636	$	497	$	6,944	100	%