Statements of Unaudited Condensed Consolidated Changes in Equity Statement - USD ($) $ in Millions |
Total |
Common Stock |
CapitalÌýin Excess of ParÌýValue of Shares |
Retained Deficit |
Common Shares in Treasury |
AOCI |
Non-controlling Interests |
Balance, beginning of period (in shares) at Dec. 31, 2019 |
Ìý
|
271,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, beginning of period at Dec. 31, 2019 |
$ 358
|
$ 37
|
$ 3,873
|
$ (2,842)
|
$ (391)
|
$ (319)
|
$ 0
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Comprehensive income (loss) |
(47)
|
Ìý
|
Ìý
|
(52)
|
Ìý
|
2
|
3
|
Stock and other incentive plans (in shares) |
Ìý
|
1,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |
Ìý
|
Ìý
|
(24)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stock and other incentive plans |
2
|
Ìý
|
Ìý
|
Ìý
|
26
|
Ìý
|
Ìý
|
Stock issued during period, shares, acquisitions (in shares) |
Ìý
|
127,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Acquisition of AK Steel |
948
|
$ 16
|
602
|
Ìý
|
Ìý
|
Ìý
|
330
|
Common stock dividends |
(24)
|
Ìý
|
Ìý
|
(24)
|
Ìý
|
Ìý
|
Ìý
|
Net distributions to noncontrolling interests |
(6)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(6)
|
Balance, end of period (in shares) at Mar. 31, 2020 |
Ìý
|
399,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period at Mar. 31, 2020 |
1,231
|
$ 53
|
4,451
|
(2,918)
|
(365)
|
(317)
|
327
|
Balance, beginning of period (in shares) at Dec. 31, 2019 |
Ìý
|
271,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, beginning of period at Dec. 31, 2019 |
358
|
$ 37
|
3,873
|
(2,842)
|
(391)
|
(319)
|
0
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Comprehensive income (loss) |
(144)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period (in shares) at Jun. 30, 2020 |
Ìý
|
399,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period at Jun. 30, 2020 |
1,118
|
$ 53
|
4,444
|
(3,042)
|
(356)
|
(306)
|
325
|
Balance, beginning of period (in shares) at Mar. 31, 2020 |
Ìý
|
399,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, beginning of period at Mar. 31, 2020 |
1,231
|
$ 53
|
4,451
|
(2,918)
|
(365)
|
(317)
|
327
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Comprehensive income (loss) |
(97)
|
Ìý
|
Ìý
|
(124)
|
Ìý
|
11
|
16
|
Stock and other incentive plans (in shares) |
Ìý
|
0
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |
Ìý
|
Ìý
|
(7)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stock and other incentive plans |
2
|
Ìý
|
Ìý
|
Ìý
|
9
|
Ìý
|
Ìý
|
Net distributions to noncontrolling interests |
(18)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(18)
|
Balance, end of period (in shares) at Jun. 30, 2020 |
Ìý
|
399,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period at Jun. 30, 2020 |
$ 1,118
|
$ 53
|
4,444
|
(3,042)
|
(356)
|
(306)
|
325
|
Balance, beginning of period (in shares) at Dec. 31, 2020 |
477,517,372
|
478,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, beginning of period at Dec. 31, 2020 |
$ 2,341
|
$ 63
|
5,431
|
(2,989)
|
(354)
|
(133)
|
323
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Comprehensive income (loss) |
70
|
Ìý
|
Ìý
|
41
|
Ìý
|
13
|
16
|
Issuance of common stock (in shares) |
Ìý
|
20,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Issuance of common stock |
322
|
$ 0
|
78
|
Ìý
|
244
|
Ìý
|
Ìý
|
Stock and other incentive plans (in shares) |
Ìý
|
1,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |
Ìý
|
Ìý
|
(22)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stock and other incentive plans |
(5)
|
Ìý
|
Ìý
|
Ìý
|
17
|
Ìý
|
Ìý
|
Acquisition of ArcelorMittal USA - Measurement period adjustments |
(1)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(1)
|
Net distributions to noncontrolling interests |
(8)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(8)
|
Balance, end of period (in shares) at Mar. 31, 2021 |
Ìý
|
499,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period at Mar. 31, 2021 |
$ 2,719
|
$ 63
|
5,487
|
(2,948)
|
(93)
|
(120)
|
330
|
Balance, beginning of period (in shares) at Dec. 31, 2020 |
477,517,372
|
478,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, beginning of period at Dec. 31, 2020 |
$ 2,341
|
$ 63
|
5,431
|
(2,989)
|
(354)
|
(133)
|
323
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Comprehensive income (loss) |
$ 919
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period (in shares) at Jun. 30, 2021 |
499,701,762
|
500,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period at Jun. 30, 2021 |
$ 3,541
|
$ 63
|
5,491
|
(2,168)
|
(87)
|
(66)
|
308
|
Balance, beginning of period (in shares) at Mar. 31, 2021 |
Ìý
|
499,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, beginning of period at Mar. 31, 2021 |
2,719
|
$ 63
|
5,487
|
(2,948)
|
(93)
|
(120)
|
330
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Comprehensive income (loss) |
849
|
Ìý
|
Ìý
|
780
|
Ìý
|
54
|
15
|
Stock and other incentive plans (in shares) |
Ìý
|
1,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |
Ìý
|
Ìý
|
4
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stock and other incentive plans |
10
|
Ìý
|
Ìý
|
Ìý
|
6
|
Ìý
|
Ìý
|
Acquisition of ArcelorMittal USA - Measurement period adjustments |
(13)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(13)
|
Net distributions to noncontrolling interests |
$ (24)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
(24)
|
Balance, end of period (in shares) at Jun. 30, 2021 |
499,701,762
|
500,000,000
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Balance, end of period at Jun. 30, 2021 |
$ 3,541
|
$ 63
|
$ 5,491
|
$ (2,168)
|
$ (87)
|
$ (66)
|
$ 308
|