Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Schedule of components of lease expense, supplemental cash flow and other information related to leases

The components of lease expense are as follows:

(Millions)	2021		2020		2019
Operating lease cost	$	319	$	348	$	308
Finance lease cost:
Amortization of assets	15		21		20
Interest on lease liabilities	2		1		2
Variable lease cost	127		101		93
Total net lease cost	$	463	$	471	$	423

Supplemental cash flow and other information related to leases is as follows:

(Millions)	2021		2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	317	$	326	$	309
Operating cash flows from finance leases	2		1		2
Financing cash flows from finance leases	19		58		18
Right of use assets obtained in exchange for lease liabilities:
Operating leases	342		250		326
Finance leases	3		18		61

Schedule of supplemental balance sheet information

Supplemental balance sheet information related to leases is as follows:

(Millions unless noted)	Location on face of Balance Sheet	2021			2020
Operating leases:
Operating lease right of use assets	Operating lease right of use assets	$	858		$	864
Current operating lease liabilities	Operating lease liabilities - current	263			256
Noncurrent operating lease liabilities	Operating lease liabilities	591			609
Total operating lease liabilities		854			865
Finance leases:
Property and equipment, at cost	Property, plant and equipment	223			225
Accumulated amortization	Property, plant and equipment (accumulated depreciation)	(117)			(106)
Property and equipment, net		106			119
Current obligations of finance leases	Other current liabilities	7			22
Finance leases, net of current obligations	Other liabilities	93			93
Total finance lease liabilities		$	100		$	115
Weighted average remaining lease term (in years):
Operating leases		5.5			5.6
Finance leases		6.6			7.6
Weighted average discount rate:
Operating leases		1.8		%	2.4		%
Finance leases		3.3		%	3.5		%

Schedule of maturities of operating lease liabilities

Maturities of lease liabilities were as follows:

	December 31, 2021
(Millions)	Finance Leases		Operating Leases
2022	$	20	$	280
2023	19		203
2024	17		134
2025	11		80
2026	9		45
After 2026	31		151
Total	107		893
Less: Amounts representing interest	7		39
Present value of future minimum lease payments	100		854
Less: Current obligations	7		263
Long-term obligations	$	93	$	591

Schedule of maturities of finance lease liabilities

Maturities of lease liabilities were as follows:

	December 31, 2021
(Millions)	Finance Leases		Operating Leases
2022	$	20	$	280
2023	19		203
2024	17		134
2025	11		80
2026	9		45
After 2026	31		151
Total	107		893
Less: Amounts representing interest	7		39
Present value of future minimum lease payments	100		854
Less: Current obligations	7		263
Long-term obligations	$	93	$	591